How often should configuration monitoring take place for high impact BES systems according to CIP-010?

Configuration monitoring for high impact Bulk Electric System (BES) systems is a critical requirement outlined in NERC CIP-010. This regulation mandates that entities must perform configuration monitoring at specific intervals to ensure the integrity and security of their systems.

The correct interval specified in CIP-010 for configuration monitoring of high impact BES systems is every 35 calendar days. This frequency is designed to align with the need for timely oversight and management of configurations, thereby helping to detect unauthorized changes that could compromise system security or operational effectiveness. Regular monitoring within this timeframe aids organizations in promptly identifying and addressing potential vulnerabilities or security issues, reinforcing the overall resiliency of the electric grid.

By adhering to this 35-day interval, organizations can maintain compliance with regulatory standards while actively managing risks associated with configuration changes in their critical infrastructure.