OPSEC is defined as which of the following?

• A. Protecting personnel safety
• B. Protecting physical assets
• C. Protecting sensitive information and operations from adversaries
• D. Ensuring compliance with international law

Answer: (C)

OPSEC centers on preventing adversaries from learning about sensitive information and how operations are conducted. It involves identifying what information could be exploited and taking steps to safeguard that data so it doesn’t reveal intent, capability, or plans. That makes the option describing protecting sensitive information and operations from adversaries the best fit. The other ideas—safety of personnel, protection of physical assets, or legal/compliance concerns—are important in their own right but aren’t the essence of OPSEC, which is specifically about information and operational security against opponents. For example, avoiding sharing mission details publicly is a practical OPSEC measure that prevents exposing critical information.