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Skype 5-way Calling Limit Cracked

John Sullivan Re:Don't Believe the Skype (427 comments)

Not really. CPUID is an untrappable ring 3 instruction, so all callers get basically an honest answer. You'd have to single-step the entire program, or do a speculative emulation to identify the call points then breakpoint them, or something similar, to subvert it.

more than 8 years ago

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