Cyber Security Certifications 2025 – 400 Free Practice Questions to Pass the Exam

Physical security in cybersecurity refers to the measures taken to protect the physical components of a system from physical actions or events that could cause damage or unauthorized access. The correct choice illustrates this concept perfectly. Security cameras, locks, and access control systems are all physical items designed to prevent unauthorized individuals from accessing sensitive areas where critical infrastructure and data are stored. These measures create a first line of defense against intruders who may wish to tamper with or steal hardware and information.

Other options focus more on cybersecurity measures that protect data and systems from digital threats rather than physical threats. Firewalls and antivirus software, for instance, safeguard network systems from malware and unauthorized access over networks but do not address the physical security of hardware. User authentication measures protect online accounts by verifying identities, which is a crucial cybersecurity aspect but still does not pertain to physical security elements. Similarly, encryption techniques protect the confidentiality and integrity of data during transmission but do not involve the physical security measures necessary to safeguard tangible hardware and facilities.