A manufacturing firm recently added multiple technical safeguards to secure its industrial control systems (ICS) and production networks. The SOC manager has been tasked with verifying-on an ongoing basis-that those controls continue to perform as intended and that any deviations are detected immediately. Which approach would BEST satisfy the organization's continuous monitoring and measurement objectives?
Perform weekly manual reviews of system logs and security events
Conduct annual penetration testing against the production infrastructure
Schedule quarterly audits of security controls by the internal audit team
Deploy a SIEM platform that provides real-time dashboards and metrics on control effectiveness
Implementing a Security Information and Event Management (SIEM) platform with real-time dashboards best supports continuous monitoring and measurement. A SIEM aggregates and correlates event data from diverse sources, providing near-real-time visibility into control performance so analysts can detect, analyze, and respond quickly. Quarterly audits, annual penetration tests, and weekly manual log reviews are valuable but remain point-in-time or infrequent activities that do not deliver continuous, automated insight into control effectiveness.
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ISC2 CISSP
Security and Risk Management
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