SecurityArena

Media Storage Requirements

Data that is no longer needed or used must be destroyed.

Object reuse. The concept of reusing data storage media after its initial use

Data remanence. It is the problem of residual information remaining on the media after erasure.

Stages of data erasure:

• Clearing. Overwriting of data media intended to be reused in the same organization or monitored environment.
• Purging. Degaussing or overwriting media intended to be removed from a monitored environment.
• Destruction. Completely destroying the media and therefore residual data.

Physical Access Logs

Logs should include:

• Date and time of access attempt
• Entry point in which access was attempted
• User ID used when access was attempted
• Unsuccessful access attempts, especially if during unauthorized hours

Reviewing the Logs. As with audit logs produced by computers, access logs are useless unless someone actually reviews them. A security guard may be required to review these logs, but a security professional or a facility manager should also review these logs periodically.