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UEFI Secure Boot provides protection from this type of attack by requiring cryptographically signed executables. Generally speaking, you need a tamper-resistant hardware module that validates the bootloader (e.g. a TPM chip). To protect yourself from hardware backdoors you need something like the Intel Trusted Execution Technology. Basically, all your ...


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Not really, or at least it is very hard. Recently a research paper on Stealthy Dopant-Level Hardware Trojans was published which shows how to include a Trojan into hardware that is so hard to detect that even if we optically compared the chip to a non-tampered unit we wouldn't find it. Read the abstract of the paper for an overview and if you want to know ...



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