Physical security involves mechanisms to provide access control, physical barriers and authentication systems such as biometric systems.
One of the hottest areas of security is the digital convergence space. Developing products that can monitor and manage digital and physical security controls in one package.
Physical security not only deals with the digital environment, but also the environmental and business environments.
Physical security controls and expertise are usually found in separate areas within an organization.
You can get a professional certification that focuses on the physical environment from ASIS (PSP).
Physical security is accomplished through proper facility construction; fire and water damage protection;proper heating, ventilation and air conditioning (HVAC) controls;antitheft mechanisms; intrusion detection systems and security procedures that are enforced.
Physical security has a different set of vulnerabilities than computer and information security.