Software theft involves illegally copying or distributing copyrighted software. There are four main types of software theft: [1] physically stealing software media or hardware, [2] disgruntled employees deleting programs from company computers, [3] widespread piracy of software manufacturers' products, and [4] obtaining registration codes illegally without purchase. To prevent software theft, owners should secure original materials, users should backup regularly, companies should escort terminated employees, and software companies enforce license agreements limiting legal use.