Limit physical access to organizational information systems, equipment, and the respective operating environments to authorized individuals.

Physical security controls protect information and systems from being accessed by unauthorized persons.

Prevent unauthorized persons from accessing your company's facilities. Prevent unauthorized persons from physically accessing devices used to support DoD projects. This includes workstations, servers, network devices, printers, and fax machines. Determine which areas of your facility are non-sensitive (e.g., the lobby). Determine which areas of your facility are sensitive. Sensitive areas include your server room and places where your work on DoD contracts. Install locks on doors leading to sensitive areas in your facility. Only provide keys to authorized persons. Provide your employees with ID cards to distinguish them from visitors. . Keep your servers and network devices in a locked room or closet (e.g., server room). Keep hard drives containing “Controlled Unclassified Information” (CUI) in locked containers. Keep paperwork containing “Controlled Unclassified Information” (CUI) in locked cabinets. Place printers and fax machines that print “Controlled Unclassified Information” (CUI) in areas that can only be accessed by authorized persons.