Allow me to summarize x86 side channel attacks: Spectre v1: speculation is insecure by design Spectre v2: secure branch prediction matters Meltdown: Intel are dumbasses L1TF: Intel are monumental, inexcusable dumbasses PortSmash: hyperthreading is insecure by design
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If there are "baked in vulnerabilities" they're going to be stuff like secret opcodes/MSRs/whatever, not shitty speculation and side channels that can be partially countered with software defenses.
End of conversation
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