What does "two-person control" help to prevent?

Two-person control is a security principle designed to ensure that no single individual has complete control over a critical process or resource. By requiring the involvement of two people in certain operations, it mitigates the risk of fraud or abuse, as it creates a system of checks and balances. This practice is particularly effective in sensitive environments such as the Department of Defense, where unauthorized access or manipulation of information could have severe consequences.

In scenarios where two-person control is implemented, both individuals must collaborate for certain actions to be executed, whether it’s access to classified information, approving transactions, or making changes to security configurations. This collaboration deters insider threats because it makes it significantly more difficult for a single person to carry out malicious activities without detection.

Therefore, the correct choice reflects the primary purpose of two-person control, which is to enhance security by preventing potential fraudulent actions or abuses of authority within the information security framework.