Which of the following is NOT a security measure that can be implemented to prevent privacy violations in this computer system?

• A. Stonewall
• B. Access controls
• C. Audit trails
• D. Encryption

Answer: (A)

Secure protection of privacy in a computer system relies on concrete controls that limit access, monitor activity, and protect data itself. Access controls determine who is allowed to view or modify information, preventing unauthorized users from reaching data. Audit trails record who did what and when, providing accountability and a way to spot suspicious or inappropriate activity. Encryption protects the actual content of data by turning it into unreadable form unless the proper decryption keys are available, so even if data is intercepted, it remains confidential.

Stonewall isn’t a recognized security measure or technical control you configure in a system. It lacks the concrete, implementable function that the others provide, so it doesn’t directly prevent privacy violations in the way access controls, audit trails, and encryption do.

Thus, Stonewall is not a security measure for preventing privacy violations.