A Chief Information Security Officer (CISO is reviewing and revising system configuration and hardening guides that were developed internally and have been used several years to secure the organization's systems.
The CISO knows improvements can be made to the guides.
Which of the following would be the BEST source of reference during the revision process?
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A. B. C. D. E.A.
The BEST source of reference for a Chief Information Security Officer (CISO) during the revision process of system configuration and hardening guides would be industry-accepted standards (Option C).
Explanation:
Industry-accepted standards provide guidelines and best practices that have been developed and vetted by security experts across various industries. These standards can serve as a baseline for security controls and can help ensure that the organization's security posture aligns with best practices and regulatory requirements. Using industry-accepted standards can also improve the organization's ability to defend against current and future threats.
In contrast, CVE database (Option A) and external vulnerability scan reports (Option D) are useful for identifying specific vulnerabilities that need to be addressed but are not necessarily comprehensive enough to guide the development of a comprehensive system hardening guide.
Internal security assessment reports (Option B) can provide insights into the organization's specific security risks and vulnerabilities, but they may not be broad enough to capture all the necessary security controls.
Vendor-specific implementation guides (Option E) are helpful for implementing specific technologies, but they may not provide the broader context necessary for developing a comprehensive system hardening guide.
Therefore, industry-accepted standards would be the BEST source of reference during the revision process of system configuration and hardening guides.