Claude AI Just Cracked a Post-Quantum Test Scheme and Found a Faster 7-Round AES Attack

Anthropic’s Mythos Preview has discovered a significantly faster method to attack the HAWK lattice-based signature scheme and also found a way to accelerate an attack on seven rounds of AES-128. While these advancements reduce the computational complexity, both remain impractical for real-world use due to the massive amount of chosen plaintexts required for the AES attack and the fact that HAWK is still a candidate in the NIST post-quantum standardization process. The research highlights the ongoing challenges in post-quantum cryptography and the need for continued scrutiny of candidate algorithms.