Recent Intel/AMD CPUs feature transparent full memory encryption. Recent AMDs have another feature called SecureBio(metrics) which directly connect one USB soc

Recent Intel/AMD CPUs feature transparent full memory encryption. Recent AMDs have another feature called SecureBio(metrics) which directly connect one USB socket to the CPU in such a way interception is not possible, which allows one to design a secure USB device (fingerprint reader, webcam for now) which can't be intercepted at the bus level. PCIe is still vulnerable, but I bet it won't be long before transparent encryption comes to it.