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Apple Chip Flaw Lets Hackers Steal Encryption Keys
A group of researchers has found a serious security vulnerability in Apple’s M-series of chips that would allow attackers to steal secret keys from Mac and iPad devices. The problem affects Apple M1, M2 and M3 chips — which have been used in Apple desktops, notebooks and tablets since late
But a team of seven researchers from universities across the U.S. released a paper and video today showing that the Apple M-series chips mix data and addresses, which can be exploited to obtain cryptographic keys. Engineers designing applications that perform cryptographic functions implement a technique called constant-time programming, which effectively prevents data from being mixed with addresses and getting placed in the cache and leaked. But in the case of the M-series chips, constant-time programming isn’t effective says Daniel Genkin, a cybersecurity and privacy professor at Georgia Institute of Technology and one of the researchers who discovered the flaw.
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