Some thoughts about Anthropic's new cryptanalysis results

# Summary Anthropic's advanced AI model Claude Mythos has produced two cryptanalysis results: an attack on the HAWK post-quantum signature scheme that reduces its security by roughly half (fixable through larger key sizes but at the cost of efficiency), and an improved attack on reduced-round AES. The HAWK result is notable because it combines existing, well-known mathematical tools rather than inventing new ones, raising concerns about what AI systems can accomplish by synthesizing known techniques that human cryptographers may have overlooked.