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New Spectre attack once again sends Intel and AMD scrambling for a fix – Ars Technica

A new transient execution variant is the first exploit micro-ops caches.



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Since 2018, an almost endless series of attacks broadly known as Spectre has kept Intel and AMD scrambling to develop defenses to mitigate vulnerabilities that allow malware to pluck passwords and other sensitive information directly out of silicon. Now, researchers say theyve devised a new attack that breaks mostif not allof those on-chip defenses.
Spectre got its name for its abuse of speculative execution, a feature in virtually all modern CPUs that predicts the…

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