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betafive
on Dec 21, 2014
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Apple EFI Firmware Security Vulnerabilities
Has anyone looked at using VTd to secure Thunderbolt devices from the system bus?
amluto
on Dec 21, 2014
[–]
That wouldn't help. This attack happens long before the OS loads, and EFI explicitly
executes
code from the option ROM, so DMA isn't even involved.
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