- University researchers discover unpatchable security flaw in Apple Silicon Macs, allowing attackers to break encryption
- Flaw in Data Memory-dependent Prefetchers (DMP) in M-series chips enables decryption of cryptographic keys
- Researchers create GoFetch app to exploit the vulnerability by manipulating data to leak the secret key over time
- Mitigations like ciphertext blinding and running cryptographic processes on efficiency cores are suggested but come with performance drawbacks
- Apple has not implemented protection against the vulnerability, and the long-term solution lies in addressing the flaw in future chip designs
https://9to5mac.com/2024/03/22/unpatchable-security-flaw-mac/
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