Which security device limits access to USB ports to prevent data leakage?

Which security device limits access to USB ports to prevent data leakage?

• A. USB locks
• B. Cable locks
• C. Password complexity
• D. Physical device security

Answer: (A)

Limiting access to USB ports to prevent data leakage is a hardware-level control that directly restricts removable media use. USB locks are designed for this purpose by sealing or locking USB ports or requiring a key or authorization to unlock them. This targeted approach effectively prevents someone from plugging in USB drives to copy data, exfiltrate information, or introduce malware. Other options don’t address USB port control specifically: cable locks are for securing devices to a fixed object to deter theft, not for blocking USB access; password complexity strengthens authentication but doesn’t stop data transfer via USB ports; and physical device security is a broad term that can include many protections but isn’t the specific measure of restricting USB port usage.

Limiting access to USB ports to prevent data leakage is a hardware-level control that directly restricts removable media use. USB locks are designed for this purpose by sealing or locking USB ports or requiring a key or authorization to unlock them. This targeted approach effectively prevents someone from plugging in USB drives to copy data, exfiltrate information, or introduce malware.

Other options don’t address USB port control specifically: cable locks are for securing devices to a fixed object to deter theft, not for blocking USB access; password complexity strengthens authentication but doesn’t stop data transfer via USB ports; and physical device security is a broad term that can include many protections but isn’t the specific measure of restricting USB port usage.