New GoFetch attack on Apple Silicon CPUs can steal crypto keys

**Executive Summary:** GoFetch is a newly disclosed side-channel attack against Apple M1/M2/M3 processors that abuses data memory-dependent prefetchers (DMP) to leak secret cryptographic keys from cache, enabling recovery of keys for algorithms such as OpenSSL Diffie-Hellman, Go RSA, CRYSTALS Kyber, and Dilithium; the flaw stems from DMP behavior that violates constant-time programming assumptions, hardware fixes are not possible for impacted chips, and software mitigations incur performance costs.