A09:2025 - Security Logging and Alerting Failures

Imagine a bank being robbed slowly over three months, but nobody notices because the security cameras were recording to a tape that no one ever reviewed. Security Logging and Alerting Failures happen when critical events (like failed logins, access denials, or server errors) are either not logged at all, lack actionable context, or are written to a file that isn't monitored by an alerting system.