How can personnel avoid accidental mishandling of classified information?

Personnel can effectively avoid accidental mishandling of classified information by adhering to established guidelines and undergoing proper training. This choice emphasizes the importance of understanding the specific protocols related to the handling, storage, and dissemination of classified material. Training provides individuals with the knowledge necessary to identify what qualifies as classified information and the appropriate measures to take to protect it.

Established guidelines are designed to create a standardized approach to security, ensuring that everyone involved is aware of their responsibilities and the potential risks associated with mishandling classified information. By following these protocols, personnel are more likely to maintain compliance with security regulations and safeguards, thereby reducing the likelihood of accidental exposure or loss of sensitive material.

While the other options may contribute to a broader security strategy, they do not directly address the fundamental requirement of proper training and guideline adherence that is crucial for avoiding mishandling incidents in the context of classified information.