How frequently does ACAS update its vulnerability database?

The correct answer highlights that ACAS updates its vulnerability database regularly, incorporating updates from reputable sources such as the National Institute of Standards and Technology (NIST) and Common Vulnerabilities and Exposures (CVE) databases. This approach ensures that the system remains current with the latest known vulnerabilities, allowing organizations to maintain a robust security posture.

Regular updates from these sources are critical for effective vulnerability management because they provide timely information about newly discovered vulnerabilities, their severity, and recommendations for mitigation. By continuously integrating this data, ACAS empowers organizations to proactively defend against potential exploits.

The other choices suggest less responsive or less comprehensive strategies for vulnerability updates, which do not align with the best practices in cybersecurity that ACAS aims to support. Frequent and systematic updates are essential for adapting to the evolving threat landscape, thereby enhancing the overall effectiveness of security measures implemented by organizations.