Nintendo takes legal aim at Switch emulators following Zelda leak

gamedeveloper.com:

The Legend of Zelda: Tears of the Kingdom was leaked last week, and Nintendo has set its sights on emulators that are being used to play it. According to a May 4 tweet from programmer Simon Aarons, the Japanese developer started issuing DMCA takedowns against emulator developers once playable versions of Tears began spreading online before its May 12 release. 

Aarons' claims were further expanded upon in a recent Kotaku report that shows how far Nintendo will go to punish those it finds to violate its copyrights. He wrote that Nintendo "has just issued multiple DMCA takedown requests to GitHub, including for Lockpick."

Lockpick is a years-old tool used to emulate Nintendo Switch games by letting users put their Switch's unique encryption keys onto their PCs for emulators (such as Yuzu) to run. In a notice posted on Twitter by a Github user, Nintendo claims Lockpick "allows users to bypass Nintendo’s Technological Measures for video games." 

"Lockpick...facilitate[s] copyright infringement by permitting users to play pirated versions of Nintendo’s copyright-protected game software on systems without Nintendo’s Console [Trusted Platform Models] or systems on which Nintendo’s Console TPMs have been disabled.”

Emulation is often heralded as an important tool for preserving game history. But when a new game leaks ahead of its intended release, emulators can be used as an alternative to try the game ahead of time. For a company heavily against leaks like Nintendo, products like that can't be allowed to exist. 

in April, Microsoft abruptly killed support for third-party emulators for the Xbox Series X|S that could run PlayStation 2 and Nintendo GameCube titles. An emulator for the GameCube and Nintendo Wii is believed to be reason