3 ms·At least for AMD the PSP isn’t externally exposed which means the attack surface is drastically reduced.by _kbh_ 4y agoAt least for AMD the PSP isn’t externally exposed which means the attack surface is drastically reduced.aqfamnzc 4y agoWhen you say externally exposed, do you mean to the network, or physically exposed, or what?_kbh_ 4y agoIt doesn’t sit on the network (unlike the ME) so an attacker needs to have access to the host already to be able to exploit any vulnerabilities on the PSP.