Cyber resilience is a crucial aspect of an organization's ability to withstand and recover from cyberattacks and other security incidents. Measuring cyber resilience involves assessing various factors that contribute to an organization's ability to prevent, detect, respond to, and recover from cyber threats.

One common framework used to measure cyber resilience is the Cyber Resilience Review (CRR) developed by the Department of Homeland Security (DHS) in the United States. The CRR evaluates an organization's resilience across ten domains, including risk management, incident management, and service continuity.

Another approach to measuring cyber resilience is through the use of key performance indicators (KPIs) and metrics. These indicators can help organizations track their progress and identify areas for improvement. For example, KPIs can include the average time to detect and respond to a security incident, the percentage of employees who have completed cybersecurity training, or the number of vulnerabilities identified and patched within a given timeframe.

Additionally, organizations can conduct simulated cyber exercises, such as tabletop exercises or red teaming, to assess their resilience in a controlled environment. These exercises simulate real-world cyber threats and test an organization's response capabilities, allowing them to identify weaknesses and refine their incident response plans.

References:

• Department of Homeland Security. (2012). Cyber Resilience Review (CRR) Overview.
• NIST Special Publication 800-160. (2018). Systems Security Engineering: Cyber Resiliency Considerations for the Engineering of Trustworthy Secure Systems.