Which behavior could be considered anomalous within the Security pillar?

The behavior that could be considered anomalous within the Security pillar is the unexplained alterations or removal of classification markings. This type of activity typically indicates a deviation from established security protocols, which are designed to protect sensitive information and maintain the integrity of classified materials. Alterations or removals of classification markings without a clear, authorized reason can jeopardize information security, lead to unauthorized access, or compromise the confidentiality of critical data.

In contrast, regular attendance in training sessions, positive compliance with security protocols, and active participation in team projects are all behaviors that align with expected norms and best practices within an organization. These actions foster a culture of safety and security, demonstrating adherence to necessary security measures rather than indicating any potential threat.