Anthropic is investigating 'unauthorized access' of its Mythos cybersecurity tool
Corroborated by 5 sources from 5 publishers
TL;DR
Reports differ across sources; according to engadget.com, anthropic is investigating 'unauthorized access' of its Mythos cybersecurity tool Mythos can find security vulnerabilities 'in every major operating operating system and web browser,' the company has said.
Sources
1
Engadget
https://www.engadget.com/ai/anthropic-is-investigating-unauthorized-access-of-its-mythos-cybersecurity-tool-091017168.html?src=rss
2
BBC News
https://www.bbc.com/news/articles/cy41zejp9pko?at_campaign=rss&at_medium=RSS
3
BBC News
https://www.bbc.com/news/articles/cy41zejp9pko?at_campaign=rss&at_medium=RSS
4
Dow Jones WSJ
https://www.wsj.com/tech/ai/anthropic-probes-possible-unauthorized-access-to-mythos-ai-model-3da1ee20?mod=rss_Technology
5
CBS News MoneyWatch
https://www.cbsnews.com/news/anthropic-investigates-mythos-ai-breach
6
Ars Technica
https://arstechnica.com/ai/2026/04/anthropic-tested-removing-claude-code-from-the-pro-plan