GIAC Security Essentials Certification (GSEC) — Question 42

What technical control provides the most critical layer of defense if an intruder is able to bypass all physical security controls and obtain tapes containing critical data?

Answer options

• A. Camera Recordings
• B. Security guards
• C. Encryption
• D. Shredding
• E. Corrective Controls

Correct answer: C

Explanation

Encryption is the most effective method to protect data, as it renders the information unreadable without the proper decryption key. While camera recordings, security guards, and shredding provide some level of protection, they do not secure the data itself from unauthorized access once physical barriers are breached. Corrective controls are typically reactive and do not actively prevent data exposure.