How dangerous is Anthropic’s Mythos AI? | Bruce Schneier
Summary
Anthropic announced a new AI model, Claude Mythos Preview, which is very good at finding weaknesses in software but will only be shared with certain companies. Other AI models, like OpenAI’s GPT-5.5, have similar abilities. These AI tools can help both attackers find flaws to exploit and defenders find bugs to fix.Key Facts
- Anthropic’s Claude Mythos Preview AI finds security problems in software but is not publicly released.
- OpenAI’s GPT-5.5 AI has comparable skill in identifying software vulnerabilities.
- Mythos is expensive to run, limiting its availability to a few companies.
- Attackers can use AI to automatically find and exploit software weaknesses, risking data theft, ransomware, or control over systems.
- Defenders can use the same AI to detect and fix vulnerabilities before attackers find them.
- Mozilla used Mythos to find and fix 271 problems in its Firefox browser.
- Many systems remain vulnerable because they cannot be updated or are not patched regularly.
- AI capabilities are improving quickly, which could lead to both better security and more attacks in the future.
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