Digital rights management for Windows

video game store and digital distribution platform among other services

Battle.net is an Internet-based online game, social networking service, digital distribution, and digital rights management platform developed by Blizzard Entertainment. The service was launched on December 31, 1996, followed a few days later with the release of Blizzard's action-role-playing video game Diablo on January 3, 1997. Battle.net was officially renamed to "Blizzard Battle.net" in August 2017, with the change being reverted in January 2021.

Denuvo Software Solutions GmbH is an Austrian company that develops anti-tamper and digital rights management (DRM) software. The company was formed from a management buyout of DigitalWorks, the developer of SecuROM, and began developing the software in 2014. It was introduced with FIFA 15 in September. Products include the anti-tamper software Denuvo Anti-Tamper, the anti-cheat system Denuvo Anti-Cheat and Nintendo Switch Emulator Protection, which attempts to prevent Nintendo Switch games from being emulated. The company was acquired by Irdeto in January 2018.

digital distribution and digital rights management platform maintained by Ubisoft

SecuROM is a CD/DVD copy protection and digital rights management (DRM) system developed by Sony DADC and introduced in 1998. It aims to prevent unauthorised copying and reverse engineering of software, primarily commercial computer games running on Windows. The method of disc protection in later versions is data position measurement, which may be used in conjunction with online activation DRM. SecuROM gained prominence in the late 2000s but generated controversy because of its requirement for frequent online authentication and strict key activation limits. A 2008 class-action lawsuit was file

software by Electronic Arts

copy protection rootkit by Sony BMG