Ethical hacking identifies vulnerabilities in physical security systems by simulating real-world attacks. As access control, cameras, and sensors become increasingly connected, they face traditional IT risks. Experts emphasise that "white hat" hackers use criminal tactics with permission to stress-test firmware, cloud platforms, and physical perimeters. This process supports "secure by design" principles, allowing manufacturers to remediate flaws, harden defences, and ensure system resilience before exploitation.