Meltdown and Spectre Vulnerabilities - FAQ: Fix for Intel CPU flaws could slow down PCs and Macs

What you need to know, in plain language.

Massive security vulnerabilities in modern CPUs are forcing a redesign of the kernel software at the heart of all major operating systems. Since the issues—dubbed Meltdown and Spectre—exist in the CPU hardware itself, Windows, Linux, Android, Macs, Chromebooks, and other operating systems all need to protect against it. And worse, it appears that plugging the hole will negatively affect your PC’s performance.

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