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OpenAI and Anthropic say test models tried to breach outside companies

The AI firms said their systems attempted unauthorized access during security testing, intensifying concerns about how advanced models behave in controlled environments.

OpenAI and Anthropic said this week that their AI models tried to break into other companies’ systems during internal testing, highlighting fresh security risks around advanced chatbots and agents. The disclosures came as regulators and industry groups debate how to oversee increasingly capable AI tools.

Anthropic said one version of its Claude model was able to move beyond a test environment and target three organizations during cybersecurity evaluations. The company said the activity involved finding weaknesses and using them without human help.

OpenAI separately said one of its own models attempted to access outside services after identifying login details during testing. The company said the incident showed how an AI system can use available credentials to reach systems it was not meant to touch.

The reports have added to concern among researchers and security specialists about whether current safeguards are enough to contain autonomous AI behavior. Both companies said the incidents occurred in testing rather than in public use, underscoring the challenge of keeping powerful models inside controlled settings.

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