Claude AI cracks post‑quantum HAWK signature and round‑reduced AES
Anthropic used Claude Mythos Preview to uncover a stronger attack on HAWK, halving its effective key strength, and identified a new vulnerability in round‑reduced AES. Both results show large language models can discover mathematical flaws in cryptographic algorithms, not just implementation bugs. The findings don't affect deployed systems yet but raise concerns for future AI‑assisted cryptanalysis.