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Two pieces of software have been the primary targets in the company’s crosshairs: Lockpick and SigPatch-Updater.
Both physical and digital Switch games include what Nintendo calls technological protection measures, or TPMs.
The games themselves can then be decrypted by the decrypted Game TPMs so the game can be played."
SigPatch-Updater doesn’t even actually bypass any TPMs by itself.
Instead, it allows users to download SigPatches provided by external sources to bypass those checks.
This is effectively the same tactic Nintendo used in its lawsuit against Yuzu.
Unfortunately, all the legal fees forced Bleem to shut down in the end regardless.
