Tamper-evident logging is a logging approach designed to reveal whether audit records have been altered, removed, or manipulated after creation. It matters because security investigations and compliance controls depend on logs that attackers cannot quietly rewrite without detection.
What is Tamper-Evident Logging?
Teams may use cryptographic chaining, immutable storage, signed logs, or externalized retention to make log tampering detectable. This helps preserve trust in forensic evidence, incident timelines, and accountability around sensitive actions.
What Tamper-Evident Logging Commonly Supports
Common uses include forensic readiness, compliance evidence, admin audit trails, privileged action review, and integrity-aware incident investigation.
Tamper-Evident Logging vs. Ordinary Mutable Logging
Ordinary logs can often be changed silently by someone with enough access. Tamper-evident logging makes such changes detectable.
Frequently Asked Questions
Why is tamper-evident logging important?
Because attackers often try to hide their actions, and logs are far less useful if they can be quietly rewritten.
Does it require immutable storage?
Not always, but immutable or externally anchored controls make tamper evidence much stronger.
