It’s been years since the idea of “trusted computing” was first mooted — a hardware layer for PCs that can verify that your OS matches the version the vendor created. At the time, TC advocates proposed that this would be most useful for thwarting malicious software, like rootkits, that compromise user privacy and security.

But from the start, civil liberties people have worried that there was a danger that TC could be used to lock hardware to specific vendors’ operating systems, and prevent you from, for example, tossing out Windows and installing GNU/Linux on your PC.

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