[mschuster91]

If these things get mainstream adoption their PCI IDs just get blacklisted (they do need to register with the system first), or IOMMU configuration will be yet another thing to fingerprint. IIRC, the host CPU has to allow the "evil" PCIe device access to memory, or is that just something that Thunderbolt chips implemented after malware authors used this for insta-unlocks?

[Hikikomori]

They come with custom firmware and pretend to be other hardware like an usb controller or sound card.

[mschuster91]

So what, as soon as these things become mainstream cheating targets, anticheat vendors will force (or "strongly suggest") to hardware manufacturers that every piece of hardware has to have some sort of uncloneable TPM-style module to verify authenticity.

[Hikikomori]

They already are in many games where good undetectable cheats are 100$ monthly subscriptions. Anticheat vendors don't have enough pull to pull that off, Microsoft maybe could but most of their effort goes into protections against advesaries other than the computers owner.