GoFetch security exploit can't be disabled on M1 and M2 Apple chips

The report describes GoFetch, a hardware-level exploit that leverages data memory-dependent prefetchers (DMP) on Apple M-series and Intel Raptor Lake CPUs to leak sensitive data; researchers demonstrated extraction of 560 bits from an RSA-protected server. Mitigations are limited: DMP can be disabled on some CPUs (e.g., M3, Raptor Lake) but not on M1/M2, so temporary workarounds include running cryptographic operations on the DMP-free Icestorm efficiency cores or implementing software changes that carry performance penalties.