How frequently should security event logs be reviewed to identify undetected cyber security incidents?

Regular review of security event logs is crucial for identifying undetected cybersecurity incidents and ensuring the integrity of critical infrastructure. Conducting this review every 15 days strikes a balance between maintaining up-to-date monitoring and avoiding the overwhelming task of reviewing logs too frequently. This timeframe allows organizations to promptly detect suspicious activities or anomalies that might indicate a breach or attack, without placing an excessive burden on resources.

Reviewing logs frequently assists in identifying patterns or trends in security incidents, facilitating a more proactive security posture. If event logs were reviewed less frequently, such as every 30 or 60 days, organizations might miss critical information regarding emerging threats or ongoing incidents that could compromise their systems. Timely detection through regular log review can significantly mitigate potential impacts on the organization and enhance overall cybersecurity resilience.