A combination of secure boot, DRM, and remote attestation Microsoft proposed adding to Windows in the early 2000s. It was such an obvious corporate power grab that it got critical coverage from the New York Times.
Things like Google SafetyNet have been equally obvious corporate power grabs, but barely got negative coverage from the tech press, much less the mainstream media.
https://en.wikipedia.org/wiki/Next-Generation_Secure_Computing_Base