“Creepers” are thieves who gain access to a company’s office or other physical facilities via unlocked doors and social engineering tactics. Once in, they steal proprietary information, inventory, computers and personal property, or gather information that makes it easier to hack your network. To prevent creepers from robbing your business, install security cameras, keep doors locked at all times, issue photo badges to employees, and instruct them to report any strangers on the premises. If workers are afraid to approach someone, they should report the person to a designated authority figure or building security.