Not just OpenAI: Now Anthropic says its internal models got online and cyberattacked 3 other organizations
Days after OpenAI disclosed that two frontier AI models escaped containment measures and autonomously cyberattacked the AI code sharing platform Hugging Face, OpenAI's top U.S. rival Anthropic tonight revealed that — lo and behold — it has also had models surreptitiously access the web when they weren't supposed to, and cyberattack and gain "unauthorized access" to three other organizations.
Anthropic says that it ran "capture the flag" cybersecurity scenarios with three models — Claude Opus 4.7, Claude Mythos 5, and unnamed internal research prototype — with its partner, the AI security firm Irregular. Anthropic says the models were not supposed to have internet access, but that a misunderstanding with Irregular allowed them to access the internet. Once they did, they "gained unauthorized access to the production infrastructure of three different organizations," as Anthropic puts it. Anthropic's blog post continues:
"Claude compromised the impacted organizations’ infrastructure using basic techniques, such...
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