A group of university researchers has revealed a vulnerability in Apple’s M-series chips that can be exploited to gain access to cryptographic keys. Dubbed “GoFetch,” the vulnerability can be used by an attacker to access a user’s encrypted files. On the GoFetch overview website, the researchers explain that GoFetch targets the M-series chips’ data memory-dependent prefetcher (DMP), which predicts the memory addresses that running code will use, to optimize performance. However, Apple’s DMP implementation sometimes confuses actual memory content
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