Data Management Glossary
What is immutable storage?
Immutable storage is a feature of file storage, or more typically object storage, that protects data from modification or deletion for a set retention period. Immutable storage is often used in highly regulated industries such as finance and health care but is now gaining popularity across other industries as a defense against ransomware or insider threats.
Implementations of immutable storage such as AWS S3 Object lock are certified by independent 3rd parties to ensure they comply with government regulations.