Which of the following is NOT a key element of personnel security?

Business continuity planning is not considered a key element of personnel security as it primarily focuses on the processes and procedures that organizations implement to ensure operations can continue during disruptions or emergencies. Personnel security, on the other hand, is fundamentally concerned with managing the risks associated with individuals who have access to sensitive information or critical operations.

Key elements of personnel security include practices like employee monitoring, which involves overseeing employee actions and behaviors to ensure compliance with security protocols; information classification, which pertains to categorizing information based on its sensitivity and the level of protection required; and background checks, which are essential for verifying an individual’s credentials and assessing their trustworthiness before granting access to sensitive information or facilities. These elements are directly related to safeguarding the organization's personnel and assets against insider threats and ensuring that the individuals in sensitive positions are reliable and properly vetted.