CompTIA Security+ (SY0-601) — Question 174

A company recently experienced a data breach and the source was determined to be an executive who was charging a phone in a public area. Which of the following would MOST likely have prevented this breach?

Answer options

• A. A firewall
• B. A device pin
• C. A USB data blocker
• D. Biometrics

Correct answer: C

Explanation

Using a USB data blocker would have stopped unauthorized data transfer while charging the phone, preventing the breach. A firewall protects networks but wouldn't be relevant in this scenario, and a device pin or biometrics would not prevent data access through a compromised charging port.