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speculative execution news

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MIT boffins' TONTOU attack slips through Spectre defenses on Intel and AMD CPUs

Researchers from MIT have unveiled a new speculative execution attack, dubbed TONTOU (Time-of-Neutralization to Time-of-Use), that circumvents existing defenses against Spectre v2. The attack, developed by Daniël Trujillo and Mengjia Yan of MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL), exploits a brief window between when branch predictor states are neutralized and…