{"id":12268,"date":"2026-08-06T15:05:11","date_gmt":"2026-08-06T13:05:11","guid":{"rendered":"https:\/\/prosteit.pl\/?p=12268"},"modified":"2026-08-06T15:05:17","modified_gmt":"2026-08-06T13:05:17","slug":"immutable-cloud-backup-for-effective-data-protection","status":"publish","type":"post","link":"https:\/\/prosteit.pl\/en\/immutable-cloud-backup-for-effective-data-protection\/","title":{"rendered":"Immutable cloud backup \u2013 effective data protection against ransomware"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"12268\" class=\"elementor elementor-12268\" data-elementor-post-type=\"post\">\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-7d5e09e7 e-con-full e-flex e-con e-parent\" data-id=\"7d5e09e7\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2d6113fb elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"2d6113fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Introduction<\/h2><p data-start=\"702\" data-end=\"1070\">Many companies believe that because backups run daily and the report shows a &quot;success&quot; status, their data is safe. The problem is that during a modern ransomware attack, cybercriminals often attempt to delete or encrypt backups first. In practice, this means a company may have a backup and still be unable to recover the data.<\/p><p data-start=\"1072\" data-end=\"1409\"><strong data-start=\"1072\" data-end=\"1102\">Immutable cloud backup<\/strong> was created to mitigate this risk. This solution blocks the ability to delete or modify backups for a specified period of time. Even if an attacker takes over an administrative account or accesses the backup environment, the last secure copy of the data can still be accessible.<\/p><p data-start=\"1411\" data-end=\"1669\">This is where Azure Blob Storage, Amazon S3, and Google Cloud Storage come in. Major cloud providers now offer immutable storage mechanisms that help build backups resistant to ransomware, administrator errors, and accidental data deletion.<\/p><p data-start=\"1671\" data-end=\"1697\">In this article we show:<\/p><ul data-start=\"1698\" data-end=\"1983\"><li data-section-id=\"1pz24zg\" data-start=\"1698\" data-end=\"1752\">\u2022 how does immutable backup differ from regular backup,<\/li><li data-section-id=\"1xx5cmi\" data-start=\"1753\" data-end=\"1808\">\u2022 why cloud synchronization alone is not enough,<\/li><li data-section-id=\"1kewq37\" data-start=\"1809\" data-end=\"1851\">\u2022 how WORM and retention mechanisms work,<\/li><li data-section-id=\"nkyf0b\" data-start=\"1852\" data-end=\"1885\">\u2022 what to pay attention to when configuring,<\/li><li data-section-id=\"6y07px\" data-start=\"1886\" data-end=\"1983\">\u2022 and how companies are using Azure, Amazon S3 and Google Cloud to protect data from ransomware.<\/li><\/ul><h2>Why might a simple backup not be enough against ransomware?<\/h2><div><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-12287\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-3.png\" alt=\"Items recoverable from a well-designed backup - company files, virtual machines, databases, Microsoft 365 email, ERP systems and configurations.\" width=\"1672\" height=\"941\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-3.png 1672w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-3-300x169.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-3-1024x576.png 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-3-768x432.png 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-3-1536x864.png 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-3-18x10.png 18w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/div><p>For years, the fundamental question was: Does the company have a backup? Today, that&#039;s not enough. A more relevant question is: Is the backup isolated, erasure-proof, recoverable, and regularly tested? This makes a big difference, as many environments have backups that technically exist, but are exposed to the same risks as production data.<\/p><p>The simplest example is a backup stored on a local NAS connected to a domain, accessible by an administrator account, and visible on the corporate network. If an attacker takes over a high-privilege account, they can not only encrypt files on the server but also delete or corrupt copies. A similar problem can occur with a backup repository on a USB drive, an SMB share, or a poorly secured cloud resource.<\/p><p>The second problem is overwriting healthy copies with encrypted data. If an organization has a short retention period and doesn&#039;t immediately notice an incident, the backup system might continue to back up already encrypted files for several days. After some time, it turns out that the last healthy version of the data has disappeared from the schedule or falls outside the retention period.<\/p><p>The third problem is the lack of account separation. In practice, a single administrative account often has access to servers, the backup system, the repository, the cloud console, and management tools. This is convenient, but dangerous. With ransomware, the administrator&#039;s convenience can become the attacker&#039;s.<\/p><ul><li>\u2022 the backup is located on the same network as the production data<\/li><li>\u2022 the backup repository is accessible from the compromised administrator account<\/li><li>\u2022 retention is too short to return to the pre-attack state<\/li><li>\u2022 the copies are not tested, so the company does not know if they can be reproduced<\/li><li>\u2022 synchronization to the cloud is confused with real backup<\/li><li>\u2022 there are no alerts about copy deletion, job errors or unusual data growth<\/li><\/ul><p>The biggest mistake isn&#039;t the lack of backup itself, but a false sense of security. A company can have a daily backup report and yet have no real protection against an attack. Therefore, immutable backup should be considered a response to a specific risk: an attempt to delete or overwrite backups. This is why a corporate backup audit often begins with a question about whether the backup is resistant to ransomware, not just whether the backup job is successful.<\/p><h2>What is immutable backup?<\/h2><p><img decoding=\"async\" class=\"aligncenter size-full wp-image-12351\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b3.png\" alt=\"Diagram of what immutable backup is \" width=\"1536\" height=\"1024\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b3.png 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b3-300x200.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b3-1024x683.png 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b3-768x512.png 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b3-18x12.png 18w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/p><p>An immutable backup is a backup that remains unchanged for a specified period. This means that once the data is saved, it cannot be deleted, overwritten, or modified until the retention period expires. The most common model used here is the WORM (Write Once, Read Many) model \u2013 data can be written once and read many times, but cannot be changed during the retention period.<\/p><p>This is crucial in the case of ransomware, as the attacker typically attempts not only to encrypt production but also to deprive the company of the ability to restore data. If a backup copy is protected by an immutability policy, deletion before the retention period expires should be blocked at the storage mechanism level, not just at the administrator&#039;s discretion.<\/p><p>It&#039;s worth being clear, however: immutable backup doesn&#039;t automatically mean your configuration is secure. If you choose the wrong retention, provide too broad permissions, don&#039;t enable MFA, don&#039;t test recovery, or save already encrypted data to the cloud, immutability alone won&#039;t solve all problems. It&#039;s a strong layer of protection, but it&#039;s still part of a larger strategy.<\/p><p>In practice, an immutable backup should answer three questions: First, will the copy survive a deletion attempt? Second, can it be restored to a point before the infection? Third, is access to it separated from regular administrative accounts and the production environment? Only the combination of these elements provides true resilience.<\/p><h2>Cloud backup and synchronization \u2013 an important difference<\/h2><p><img decoding=\"async\" class=\"aligncenter size-full wp-image-12343\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b1.png\" alt=\"Cloud backup and synchronization scheme\" width=\"1672\" height=\"941\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b1.png 1672w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b1-300x169.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b1-1024x576.png 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b1-768x432.png 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b1-1536x864.png 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b1-18x10.png 18w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/p><p>Many companies claim to have cloud backups, but upon closer inspection, it turns out they&#039;re just file synchronization. They&#039;re not the same thing. Synchronization is used to conveniently work with up-to-date data. If a user deletes a file, the change can be synchronized. If ransomware encrypts documents, the encrypted versions can be sent to the cloud. Without versioning, retention, and recovery procedures, a company may be left with a problem despite having an &quot;online copy.&quot;.<\/p><p>A true backup should allow for point-in-time recovery. It should store multiple versions, have a defined retention period, be monitored, and tested. A ransomware-resistant solution also includes an element of immutability, meaning the backup cannot be deleted or overwritten for a specified period.<\/p><p>Therefore, cloud backup shouldn&#039;t be designed as a simple &quot;throw data into the cloud.&quot; It&#039;s better to think of it as a controlled process: the backup tool makes a copy, encrypts the data, saves it to an object repository, applies retention, and the administrator regularly checks whether files, virtual machines, databases, or entire systems can be restored.<\/p><h2><a href=\"https:\/\/learn.microsoft.com\/en-us\/azure\/storage\/blobs\/immutable-storage-overview\" target=\"_blank\" rel=\"noopener\">Azure Blob<\/a>, <a href=\"https:\/\/docs.aws.amazon.com\/AmazonS3\/latest\/userguide\/object-lock.html\" target=\"_blank\" rel=\"noopener\">Amazon S3<\/a> and Google Cloud Storage - what do they have in common?<\/h2><p>Azure Blob Storage, Amazon S3, and Google Cloud Storage are popular object storage services. In the context of backup, this means that data is saved as objects in the cloud, rather than as traditional files on a network share. This approach is well-suited for storing large numbers of copies, long-term retention, off-site storage, and integration with modern backup systems.<\/p><p>Most importantly, each of these providers offers mechanisms to help enforce data retention and immutability. Microsoft has Immutable Blob Storage for Azure Blob Storage, Amazon offers S3 Object Lock, and Google Cloud Storage offers Bucket Lock and Object Retention Lock. The names and technical details vary, but the goal is similar: to restrict the deletion or modification of objects for a defined period of time.<\/p><p>It&#039;s also important to remember that a storage service alone doesn&#039;t replace backup software. Azure Blob, S3, or Google Cloud Storage are where data is stored. A separate tool, such as Veeam, Nakivo, Commvault, Acronis, NAS solutions, or other systems supporting object repositories, is responsible for the backup logic. This tool decides what to copy, when, how long to retain, how to encrypt, and how to restore.<\/p><p>S<\/p><h2>Comparison of immutable mechanisms in the largest clouds\u00a0<\/h2><table><tbody><tr><td width=\"168\"><p><strong>Platform<\/strong><\/p><\/td><td width=\"168\"><p><strong>Mechanism<\/strong><\/p><\/td><td width=\"168\"><p><strong>What protects<\/strong><\/p><\/td><td width=\"168\"><p><strong>What to watch out for<\/strong><\/p><\/td><\/tr><tr><td width=\"168\"><p>Azure Blob Storage<\/p><\/td><td width=\"168\"><p>Immutable Blob Storage, WORM policies, time retention, legal hold<\/p><\/td><td width=\"168\"><p>Protects blob data from modification and deletion within a specified retention period.<\/p><\/td><td width=\"168\"><p>It&#039;s worth planning some settings at the account or container creation stage. Permissions and retention should be monitored.<\/p><\/td><\/tr><tr><td width=\"168\"><p>Amazon S3<\/p><\/td><td width=\"168\"><p>S3 Object Lock, Governance Mode, Compliance Mode, retention period, legal hold<\/p><\/td><td width=\"168\"><p>Protects object versions from being overwritten or deleted. In Compliance Mode, protection is very restrictive.<\/p><\/td><td width=\"168\"><p>Object Lock requires versioning. Compliance mode can be difficult to undo, so retention must be chosen carefully.<\/p><\/td><\/tr><tr><td width=\"168\"><p>Google Cloud Storage<\/p><\/td><td width=\"168\"><p>Bucket Lock, Object Retention Lock, retention policy<\/p><\/td><td width=\"168\"><p>Allows you to force objects to be stored for a specific period of time at the bucket or object level.<\/p><\/td><td width=\"168\"><p>Locked-in retention policies can be permanent. Be careful about costs and incorrect retention periods.<\/p><\/td><\/tr><\/tbody><\/table><p>The table highlights the key conceptual differences. In practical implementation, compatibility with the specific backup tool, cloud region, retention requirements, storage costs, and recovery procedure must also be verified.<\/p><h2>How does immutable backup help after a ransomware attack?<\/h2><div><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12284\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-6.png\" alt=\"Ransomware data recovery step by step - isolate the incident, assess the scale of the attack, verify copies, restore data and get your business back to business.\" width=\"1672\" height=\"941\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-6.png 1672w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-6-300x169.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-6-1024x576.png 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-6-768x432.png 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-6-1536x864.png 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-6-18x10.png 18w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/div><div><p>Imagine a company where ransomware has encrypted a file server and some virtual machines. Employees lose access to documents, their accounting software stops working, and a ransom note appears on their desktops. The key question at this point is: is there a healthy copy of the data from before the attack, and can it be restored?<\/p><p>If the backup was stored only locally and was accessible from a compromised account, the attacker may have previously deleted the restore points. If the company only had file synchronization, encrypted versions may already be present in the cloud. If retention was too short, a healthy backup from several days ago may have been overwritten.<\/p><p>In the immutable model, a portion of the backup is placed in a repository that prevents objects from being deleted or modified before the retention period expires. This doesn&#039;t automatically restore the company to operations, but it does provide administrators with a crucial resource: a baseline from which to begin recovery. Instead of negotiating with the perpetrators, the company can focus on isolating the incident, cleaning up the environment, and restoring services in a controlled manner.<\/p><p>Of course, restoring data after ransomware still requires a procedure. Data should not be recklessly restored to an infected environment. First, determine the scope of the attack, shut down the infected systems, change credentials, verify backups, verify the restore point, and only then restart services. Immutable backups provide a means of recovery, but they do not replace a disaster recovery plan.<\/p><\/div><h2>What to watch out for when configuring immutable backup?<\/h2><div><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12286\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-4.png\" alt=\"Corporate backup audit checklist including backup separation, recovery testing, off-site backup, immutable protection, retention, MFA, alerts, and recovery procedure.\" width=\"1672\" height=\"941\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-4.png 1672w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-4-300x169.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-4-1024x576.png 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-4-768x432.png 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-4-1536x864.png 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-4-18x10.png 18w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/div><p>The biggest risk when implementing immutable backup is treating it as a single switch in a dashboard. In reality, proper implementation requires consideration of retention, permissions, costs, encryption, alerts, and the recovery process. A design error can result in a backup that is either underprotected or locked down for too long and too expensive to maintain.<\/p><p>The first element is retention. Too short a retention period may be insufficient if an attack is detected after a few or more days. Too long a retention period can unnecessarily increase costs and complicate management. Therefore, it&#039;s worth establishing separate policies for different data: different ones for critical databases, different ones for user files, and different ones for long-term archives.<\/p><p>The second element is permissions. The account performing the backup should not have full administrative rights to the entire cloud. Access should be limited to what&#039;s necessary, secured with MFA, and separated from standard accounts used for daily administration. It&#039;s also worth separating roles: who can create the repository, who can change retention, who can restore data, and who only monitors status.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-922d26f e-flex e-con-boxed e-con e-parent\" data-id=\"922d26f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-49f2033 elementor-widget elementor-widget-text-editor\" data-id=\"49f2033\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The third element is testing. A backup that has never been restored is only a promise. Regular test restores of a file, database, virtual machine, or selected system are necessary to ensure that the backup not only exists but actually works.<\/p><ul><li>\u2022 set retention based on a realistic attack scenario, not just the minimum cost<\/li><li>\u2022 enable MFA for administrative accounts and limit permissions according to the principle of least privilege<\/li><li>\u2022 separate the backup account from the daily administrator accounts<\/li><li>\u2022 encrypt copies and securely store recovery keys and passwords<\/li><li>\u2022 monitor task errors, unusual data growth, and object deletion attempts<\/li><li>\u2022 perform playback tests regularly and record the test results<\/li><li>\u2022 keep an eye on the costs of storage, operations, reading and possible data transfer<\/li><li>\u2022 document the recovery procedure step by step to avoid improvising during a failure<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-ced0154 e-flex e-con-boxed e-con e-parent\" data-id=\"ced0154\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ccb4467 elementor-widget elementor-widget-heading\" data-id=\"ccb4467\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Does immutable backup replace the 3-2-1 rule?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0076caa elementor-widget elementor-widget-text-editor\" data-id=\"0076caa\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12288\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-2.png\" alt=\"Secure backup layers for businesses - local backup, off-site copy, immutable backup, test recovery and anti-ransomware recovery.\" width=\"1672\" height=\"941\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-2.png 1672w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-2-300x169.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-2-1024x576.png 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-2-768x432.png 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-2-1536x864.png 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_37-2-18x10.png 18w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/p><p>No. Immutable backup doesn&#039;t replace the 3-2-1 rule; it only reinforces it. The classic rule calls for maintaining multiple copies of data, on different media or in different locations, with one copy kept off-site. Modern approaches increasingly often add an additional element: one copy should be immutable or offline, meaning it should be resistant to deletion and overwriting.<\/p><p>That&#039;s why you might encounter the extension 3-2-1-1-0. In simple terms, it means: three copies of data, two different media types or locations, one off-site copy, one immutable or offline copy, and zero errors in recovery tests. This last point is especially important, because simply having a copy isn&#039;t enough if recovery errors occur.<\/p><p>In practice, a company might have a local copy for fast recovery of individual files or machines, a second copy on another device or repository, and an immutable cloud copy as a worst-case scenario. This arrangement allows for a combination of recovery speed and resilience to local failures and ransomware.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-cde8549 e-flex e-con-boxed e-con e-parent\" data-id=\"cde8549\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-784c51c elementor-widget elementor-widget-heading\" data-id=\"784c51c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">For whom does backup to Azure Blob, Amazon S3, or Google Cloud Storage make the most sense?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ce20d2 elementor-widget elementor-widget-text-editor\" data-id=\"4ce20d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12285\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-5.png\" alt=\"Situations in which it is worth implementing immutable backup - file server, ERP system, virtual environment, off-site copy, ransomware protection and audit preparation\" width=\"1672\" height=\"941\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-5.png 1672w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-5-300x169.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-5-1024x576.png 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-5-768x432.png 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-5-1536x864.png 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_38-5-18x10.png 18w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/p><p>Cloud backup with unchangeable data makes sense especially where data is critical to company operations. This isn&#039;t limited to large organizations. A small business that loses access to documents, accounting software, customer databases, orders, projects, or an ERP system can also experience significant downtime and real costs.<\/p><p>This solution is particularly worth considering for companies that use local servers, virtual environments, production systems, SQL databases, design files, accounting documentation, HR data, or large network shares. The more a company depends on data continuity, the more important a deletion-resistant backup becomes.<\/p><p>Object cloud backup also works well as an off-site layer. If a fire, flood, equipment theft, server failure, or NAS issue occurs in the office, a local copy alone may not be enough. The cloud allows for off-site data storage, and immutable mechanisms provide additional protection against intentional or accidental deletion.<\/p><ul><li>\u2022 accounting offices and law firms storing client documents<\/li><li>\u2022 manufacturing companies using ERP systems, technological files and databases<\/li><li>\u2022 logistics companies dependent on the continuity of operational systems and shipping documents<\/li><li>\u2022 online stores and e-commerce companies with order databases and integrations<\/li><li>\u2022 software houses and design offices working on repositories and design files<\/li><li>\u2022 companies with local file servers, Hyper-V, VMware or NAS environments<\/li><li>\u2022 organizations that already use Veeam, Synology, QNAP or another backup tool<\/li><li>\u2022 companies that want to organize their backup policy before auditing, cyber insurance or implementing security procedures<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4069440 elementor-widget elementor-widget-heading\" data-id=\"4069440\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How to implement immutable backup in your company?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b05b98f elementor-widget elementor-widget-text-editor\" data-id=\"b05b98f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12347\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b2.png\" alt=\"Scheme of implementing immutable backup in the company\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b2.png 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b2-300x200.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b2-1024x683.png 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b2-768x512.png 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/05\/b2-18x12.png 18w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/p>\n<p>A good implementation should begin with an audit, not with purchasing cloud storage space. First, determine what data is critical, where it resides, who is responsible for it, how quickly it must be restored after a failure, and how much data loss the company is willing to accept. Only then can a backup tool, repository, and retention policy be selected.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9288f71 elementor-widget elementor-widget-text-editor\" data-id=\"9288f71\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Two concepts are important: RPO and RTO. RPO determines the maximum amount of data a company can lose, for example, from the last four hours or the last day. RTO determines how quickly a system should be back online. Backup planning for a file server is different from that for a system that halts production or sales.<\/p>\n<p>Once you&#039;ve defined your requirements, you can choose an object storage solution. Azure Blob is a natural choice for companies firmly rooted in the Microsoft ecosystem. Amazon S3 is a very popular standard and has broad tool support. Google Cloud Storage can be a good choice for companies using Google Cloud services or wanting to maintain consistency with their existing infrastructure. The decision should be based on compatibility, cost, regional availability, security policies, and team competencies.<\/p>\n<p>Finally, the most important step remains: the recovery test. Without it, the implementation is incomplete. The test should encompass not only the recovery of a single file, but also a more disaster-like scenario: restoring a selected machine, database, or directory to a separate environment.<\/p>\n<ol>\n<li>Identify critical data, systems and business owners.<\/li>\n<li>Determine RPO and RTO for your most important services.<\/li>\n<li>Check your current backup tool and its support for object storage.<\/li>\n<li>Select a repository: Azure Blob, Amazon S3, Google Cloud Storage, or compatible S3.<\/li>\n<li>Configure retention, versioning, and immutable mechanisms as required.<\/li>\n<li>Limit permissions, enable MFA, and separate backup accounts from administrative accounts.<\/li>\n<li>Enable backup encryption and secure recovery keys and passwords.<\/li>\n<li>Set up task monitoring, error alerts and cost control.<\/li>\n<li>Perform a test playback and record the procedure step by step.<\/li>\n<li>Regularly review your backup policy, retention, and test results.<\/li>\n<\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-dbe7c12 e-flex e-con-boxed e-con e-parent\" data-id=\"dbe7c12\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dc665da elementor-widget elementor-widget-heading\" data-id=\"dc665da\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Mini-case: the company had a backup, but no immunity <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-39a274a elementor-widget elementor-widget-text-editor\" data-id=\"39a274a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12289\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_36-1.png\" alt=\"The most common mistakes in corporate backup - single copy location, lack of testing, too short retention, lack of account separation, synchronization instead of backup and lack of immutable protection.\" width=\"1672\" height=\"941\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_36-1.png 1672w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_36-1-300x169.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_36-1-1024x576.png 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_36-1-768x432.png 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_36-1-1536x864.png 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2026\/04\/ChatGPT-Image-28-kwi-2026-15_15_36-1-18x10.png 18w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/p>\n<p>Imagine a service company employing several dozen people. Data was stored on a file server and several virtual machines. Backups were performed daily to a local repository, and once a week, some data was copied to a NAS. For a long time, everything seemed fine. Reports arrived via email, and recovery tests were limited to the occasional recovery of a single file.<\/p>\n<p>The problem arose after a ransomware infection. The attackers gained access to a high-privilege account and deleted some restore points before activating the encryption. The local NAS was also accessible from the network, so some backups were corrupted. The company had a backup, but it didn&#039;t have a separate, unalterable copy that could serve as a safe recovery point.<\/p>\n<p>After the environment was cleaned up, an additional copy was deployed to the object repository with immutable retention, administrative accounts were separated, permissions were limited, MFA was enabled, and a recovery procedure was established. The biggest change wasn&#039;t &quot;backup moving to the cloud.&quot; The key was that the company began treating backup as a component of incident resilience, not just a technical task performed overnight.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9323514 elementor-widget elementor-widget-heading\" data-id=\"9323514\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How can we help? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9b064a9 elementor-widget elementor-widget-text-editor\" data-id=\"9b064a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/prosteit.pl\/en\/cloud-services\/\">\u00a0Immutable backup requires good design. It&#039;s not just about choosing Azure, AWS, or Google. You need to consider what the company really needs to protect, where the data is, what the current infrastructure looks like, what the risks are, and whether the current backup can be restored after a major disaster or ransomware attack.<\/a><\/p><p><a href=\"https:\/\/prosteit.pl\/en\/it-services\/back-up\/veeam-backup-implementation-and-configuration\/\">We can help analyze your current backup configuration, select a cloud repository, plan retention, restrict permissions, and develop a practical recovery procedure. Whether your company needs to implement cloud backup, protect against ransomware, or clean up its backups after a previous issue, we begin with a simple risk assessment and realistic data recovery options. We prioritize solutions that your company understands, not complex, unmanageable schemes.<\/a><\/p><ul><li>\u2022 we will check whether the current backup is resistant to deletion and ransomware<\/li><li>\u2022 we will select a local, cloud and immutable backup strategy<\/li><li>\u2022 we will help you plan retention, RPO, RTO and recovery tests<\/li><li>\u2022 we will configure the repository in Azure Blob, Amazon S3, Google Cloud Storage or S3-compatible<\/li><li>\u2022 we will limit permissions, implement MFA and separate backup accounts<\/li><li>\u2022 we will prepare a procedure for data recovery after a failure or incident<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d6c218 elementor-widget elementor-widget-heading\" data-id=\"9d6c218\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Summary <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70297b0 elementor-widget elementor-widget-text-editor\" data-id=\"70297b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A well-planned backup of corporate data to the cloud helps mitigate the effects of failures, user errors, and ransomware attacks. However, the most important thing is that the backup is not only made but also protected against deletion, regularly tested, and reproducible in a crisis.<\/p><p>Ransomware has changed the way we think about backups. Today, it&#039;s not enough to ask if a backup is being made. You need to verify whether it will survive a deletion attempt, whether it has adequate retention, whether it is separated from the production environment, and whether it can be realistically restored.<\/p><p>Immutable cloud backup is one of the most important layers of data protection. Azure Blob Storage, Amazon S3, and Google Cloud Storage offer mechanisms that allow you to store copies in a WORM model, reducing the risk of deletion or overwriting. This is especially important if an attacker takes over an administrator account or gains access to parts of the infrastructure.<\/p><p>However, the best results come from combining several elements: the 3-2-1-1-0 strategy, encryption, MFA, limited permissions, monitoring, recovery testing, and a clear post-incident procedure. Immutable backup isn&#039;t a magic bullet, but it can be the deciding factor in whether a company returns to business after an attack or is left without a secure copy of its data.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-9b06685 e-flex e-con-boxed e-con e-parent\" data-id=\"9b06685\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1852eac elementor-widget elementor-widget-elementskit-faq\" data-id=\"1852eac\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"elementskit-faq.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"ekit-wid-con\" >\n                <div class=\"elementskit-single-faq elementor-repeater-item-72354eb\">\n            <div class=\"elementskit-faq-header\">\n                <h2 class=\"elementskit-faq-title\">Does immutable backup protect against ransomware?<\/h2>\n            <\/div>\n            <div class=\"elementskit-faq-body\">\n                Primarily, it protects backups from being deleted, overwritten, or modified for a specified period of time. It doesn&#039;t stop the attack itself, but it increases the chance of restoring data without paying a ransom.\n            <\/div>\n        <\/div>\n                <div class=\"elementskit-single-faq elementor-repeater-item-ba8b3b3\">\n            <div class=\"elementskit-faq-header\">\n                <h2 class=\"elementskit-faq-title\">Is cloud backup always immutable?<\/h2>\n            <\/div>\n            <div class=\"elementskit-faq-body\">\n                No. The cloud itself doesn&#039;t guarantee immutability. You need to consciously enable appropriate retention, versioning, and deletion protection mechanisms, and configure them in accordance with your backup tool.            <\/div>\n        <\/div>\n                <div class=\"elementskit-single-faq elementor-repeater-item-33e5a85\">\n            <div class=\"elementskit-faq-header\">\n                <h2 class=\"elementskit-faq-title\">What is the difference between backup and cloud synchronization?<\/h2>\n            <\/div>\n            <div class=\"elementskit-faq-body\">\n                Synchronization keeps your files up-to-date across devices and the cloud. Backup stores points in time, data versions, and retention, allowing you to revert to a state prior to a failure or infection.\n            <\/div>\n        <\/div>\n                <div class=\"elementskit-single-faq elementor-repeater-item-49b887d\">\n            <div class=\"elementskit-faq-header\">\n                <h2 class=\"elementskit-faq-title\">Are Azure Blob, Amazon S3, and Google Cloud Storage backup programs?<\/h2>\n            <\/div>\n            <div class=\"elementskit-faq-body\">\n                No. These are object storage facilities, meaning they store data. To perform a backup, you also need a backup tool that can handle scheduling, retention, encryption, and recovery.            <\/div>\n        <\/div>\n                <div class=\"elementskit-single-faq elementor-repeater-item-1c98a5a\">\n            <div class=\"elementskit-faq-header\">\n                <h2 class=\"elementskit-faq-title\">Which immutable retention period should I choose?<\/h2>\n            <\/div>\n            <div class=\"elementskit-faq-body\">\n                It depends on the data, risk, and company requirements. Too short a retention period may be insufficient in the event of a late-detected attack, while too long a retention period can increase costs. In practice, retention should be determined after analyzing RPO, RTO, and contingency scenarios.            <\/div>\n        <\/div>\n                <div class=\"elementskit-single-faq elementor-repeater-item-c78abf9\">\n            <div class=\"elementskit-faq-header\">\n                <h2 class=\"elementskit-faq-title\">Can an immutable backup be deleted before the retention period ends?<\/h2>\n            <\/div>\n            <div class=\"elementskit-faq-body\">\n                In a properly configured mode, this shouldn&#039;t be possible. Details depend on the platform, retention mode, and permissions. Particularly restrictive modes may block deletion even by an administrator.            <\/div>\n        <\/div>\n                <div class=\"elementskit-single-faq elementor-repeater-item-dfa4847\">\n            <div class=\"elementskit-faq-header\">\n                <h2 class=\"elementskit-faq-title\">Does immutable backup increase costs?<\/h2>\n            <\/div>\n            <div class=\"elementskit-faq-body\">\n                It can increase storage costs because data is retained for a finite period and cannot always be deleted beforehand. Operation, reading, transfer, and long-term retention costs must also be considered.\n            <\/div>\n        <\/div>\n                <div class=\"elementskit-single-faq elementor-repeater-item-73cf04c\">\n            <div class=\"elementskit-faq-header\">\n                <h2 class=\"elementskit-faq-title\">Does a small business also need immutable backup?<\/h2>\n            <\/div>\n            <div class=\"elementskit-faq-body\">\n                Yes, if the data is critical to its operations. A small business can also be encrypted by ransomware, and the loss of documents, databases, or accounting systems can disrupt operations for days.            <\/div>\n        <\/div>\n                <div class=\"elementskit-single-faq elementor-repeater-item-f432fe5\">\n            <div class=\"elementskit-faq-header\">\n                <h2 class=\"elementskit-faq-title\">Is immutable backup enough as the only security measure?<\/h2>\n            <\/div>\n            <div class=\"elementskit-faq-body\">\n                No. This is one layer of protection. The company still needs updates, MFA, strong passwords, network segmentation, email security, monitoring, and incident response procedures.            <\/div>\n        <\/div>\n                <div class=\"elementskit-single-faq elementor-repeater-item-8e65a26\">\n            <div class=\"elementskit-faq-header\">\n                <h2 class=\"elementskit-faq-title\">How to check if our backup really works?<\/h2>\n            <\/div>\n            <div class=\"elementskit-faq-body\">\n                It&#039;s best to perform a recovery test. It&#039;s worth restoring not just a single file, but also a selected machine, database, or system to a separate environment and verifying that it&#039;s working properly.\n            <\/div>\n        <\/div>\n                \n    <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Wprowadzenie Wiele firm jest przekonanych, \u017ce skoro backup dzia\u0142a codziennie i raport pokazuje status \u201esuccess\u201d, to dane s\u0105 bezpieczne. Problem w tym, \u017ce podczas nowoczesnego ataku ransomware cyberprzest\u0119pcy bardzo cz\u0119sto pr\u00f3buj\u0105 najpierw usun\u0105\u0107 lub zaszyfrowa\u0107 w\u0142a\u015bnie kopie zapasowe. W praktyce oznacza to, \u017ce firma mo\u017ce mie\u0107 backup\u2026 i mimo tego nie by\u0107 w stanie odzyska\u0107 [&hellip;]<\/p>","protected":false},"author":5,"featured_media":12313,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[83],"tags":[1114,864,1115,765,1118],"class_list":["post-12268","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologia","tag-backup","tag-backup-w-chmurze","tag-chmura","tag-informatyk-ozarow-mazowiecki-2","tag-ochrona-danych"],"_links":{"self":[{"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/posts\/12268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/comments?post=12268"}],"version-history":[{"count":1,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/posts\/12268\/revisions"}],"predecessor-version":[{"id":12466,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/posts\/12268\/revisions\/12466"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/media\/12313"}],"wp:attachment":[{"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/media?parent=12268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/categories?post=12268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/tags?post=12268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}