What is the security lifecycle?

The security lifecycle refers to a continuous process that involves ongoing management and assessment of security risks to ensure that security measures remain effective and relevant over time. This approach recognizes that security is not a static endeavor but rather requires constant evaluation and adaptation to emerging threats, changes in the operational environment, and advancements in technology.

By focusing on a continuous process, organizations can better identify vulnerabilities, assess risks, implement appropriate control measures, and adapt to changes as needed. This cycle typically includes stages such as risk assessment, implementation of security measures, monitoring, review, and feedback, which allow organizations to maintain and enhance their security posture.

The other options do not accurately capture the nature of the security lifecycle. A series of unrelated security events suggests a lack of coordination or purpose, which does not reflect the systematic approach required for effective risk management. A one-time assessment overlooks the necessity for ongoing evaluation and adaptation, and a framework limited to physical measures disregards the need for a comprehensive view that includes cyber, personnel, and procedural security aspects.