Remember those serious Meltdown and Spectre CPU flaws from about five years ago? Well, Intel’s in hot water again with another serious vulnerability that affects years worth of processors.
Known as “Downfall,” the vulnerability exploits a flaw in the AVX vector extensions of every Intel CPU from the Skylake generation onward until we get to the more recent 12th-gen Alder Lake processors.
Macs with these processors started appearing in late 2015 with the 21.5-inch iMac, and just about every Intel-based Mac–desktop or laptop–since that time is on the list of affected processors. Apple switched to its own chips in 2020 rather than using the newer 12th- and 13th-gen Intel processors (though those aren’t affected by the flaw anyway).
Read more at Macworld.com