Claude Mythos Preview reveals mathematical flaws in cryptographic security
Published On 30 Jul, 2026
Cryptography uses sophisticated algorithms to protect web traffic, emails, software updates, and sensitive information such as banking details by rendering data unreadable to unauthorized users.
The Anthropic team detailed its findings in two recent papers.
In the first paper, the team analyzed a prototype security approach named HAWK, intended to become a future worldwide standard in the age of highly powerful quantum computers.
Although human experts had spent more than two years analyzing the algorithm and believed it was secure, the AI model found a hidden mathematical shortcut. This discovery revealed a new way to attack the system that researchers had completely overlooked.
While the AI handled the heavy lifting in identifying this flaw, humans served as supervisors. As researchers Zygimantas Straznickas and Stephen A. Weis noted in their paper, most of the mathematical discoveries were AI-assisted, while human contributions mainly involved directing, organizing, and verifying the AI’s work.
