Physical penetration testing involves hiring professionals to test physical security systems for vulnerabilities. Pentesters use tools and methods like disguises, badges, and lockpicking tools to mimic how attackers could gain access. The testing process involves five phases - reconnaissance, scanning/probing, exploitation, post-exploitation, and reporting. During reconnaissance, pentesters gather open-source intelligence on the target using tools like social media analysis. They then create an exploitation plan and put it into action during the exploitation phase using techniques like social engineering and bypassing physical barriers. In the end, pentesters report their findings and recommendations to improve the organization's security.