Which of the following is NOT a requirement for privileged accounts as per CMMC?

The requirement for privileged accounts in the context of CMMC emphasizes security and access control to ensure that sensitive information and systems are adequately protected. Privileged accounts typically have elevated access rights, making it critical to implement strict controls to prevent unauthorized access and misuse.

The option that states "Open for public access" clearly does not align with the requirement for privileged accounts. Allowing public access contradicts the principles of security associated with privileged accounts, which demand controlled and restricted access to ensure that only authorized personnel can perform tasks that could impact the organization's security posture.

In contrast, the other options reflect best practices for managing privileged accounts. Multi-factor authentication enhances security by requiring more than one form of verification. Restricting access to designated personnel ensures that only those who have been properly vetted and trained have access to sensitive systems. Detailed session logging is crucial for accountability and auditing, allowing organizations to track actions taken by privileged users and detect any unusual or unauthorized activity.

Thus, "Open for public access" is not just inappropriate; it fundamentally undermines the security objectives encapsulated in the CMMC framework regarding the management of privileged accounts.