The ISSO must ensure application audit trails are retained for at least 30 months (12 months active + 18 months cold storage) for applications without SAMI data and five years for applications including SAMI data.

Log files are a requirement to trace intruder activity or to audit user activity.

Verify a process is in place to retain application audit log files for 30 months (12 months active + 18 months cold storage) for non-SAMI data and five years for SAMI data.

If audit logs have not been retained for 30 months (12 months active + 18 months cold storage) or five years for SAMI data, this is a finding.

Retain application audit log files for 30 months (12 months active + 18 months cold storage) for non-SAMI data and five years for SAMI data.