What must occur with classified information if an individual leaves or transfers positions?

When an individual leaves or transfers positions, classified information must be accounted for and surrendered to the appropriate authority. This process is crucial to ensuring that sensitive information does not fall into the wrong hands and is properly managed according to established security protocols. The accountability and surrender ensure that there is a clear record of where the classified material is at all times, and that it is handled in accordance with government regulations and the organization's security policies.

The necessity of surrendering classified materials aligns with the overarching objective of safeguarding national security and maintaining the integrity of classified systems. This process also includes a thorough review of the work conducted by the individual, ensuring that any documents, materials, or digital information containing classified content are returned to designated personnel responsible for proper handling and security measures.

The other options, such as destroying the information, retaining it personally, or transferring it informally, do not align with proper classification management procedures and could lead to unintentional breaches of security or legal issues regarding the handling of sensitive information.