Nothing Really Broke. Pay Attention Anyway.

Claude Mythos Preview found new attacks on cryptography in a research-led test. The target was a weakened version of AES, not the standard running your bank or your messages, so nothing in use today is exposed. What holds the internet together is the assumption that certain math costs too much to break, and that assumption was priced for human attackers on human timelines. AI has moved faster in security than almost anywhere else. Often, the systems we trust most are the systems we have stopped examining.

"In the testing, Mythos was able to break the weaker version of Advanced Encryption Standard in a way that Anthropic said made an assault 200 to 1,000 times faster than what previous human research had managed to do."