Immutable Backup Explained

Immutable Backup Explained

In definition, immutable means ‘cannot be changed’. Immutable backup or storage implies that your data is fixed, unchangeable and cannot be deleted for a period of time or sometimes, forever.

Having an immutable backup is important for industries so that their data is secured from undesired accidents or circumstances. One of which is human errors, wherein employees or staff sometimes accidentally delete files due to mishandling or uneducated practices. Other instances can be due to internal errors such as application bugs.

Aside from this, data can also be altered and deleted by malicious activities such as viruses, ransomware and hacking attacks. Organisations’ data are vulnerable to such activities. In the case of ransomware, for instance, if they do not have proper backup practices or their backups have also been encrypted, then the only way to retrieve their files is by paying the ransom. Otherwise, they must spend time and money on decrypting their data, which isn’t practical. Either way, there’s no guarantee that they’ll ever recover 100% of the data.

Due to these issues, companies are resorting on having their backups immutable. Immutable backup works by creating a copy of your data and putting it on an immutable backup especially in the cloud, meaning, any data stored cannot be modified or erased.

By implementing immutable backup, businesses are able to retrieve their data no matter what happened to their copy, since the backup or the storage will remain the same. Before this, data is stored using external drives such as tapes and sent away to a location away from its origin. This introduces difficulty to access and is really impractical if you want to retrieve it straightaway.

With immutable backup, any errors, viruses, or malware will have no impact on the data, as it is secured from any deletions or alterations. This is essential as backups serve as the final line of defence for organisations and this immutability ensures they can be completely relied upon in the worst-case scenarios.


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