On Thursday, Anthropic said its Claude AI models accessed the systems of three outside companies during cybersecurity evaluations after a configuration error gave the models unintended access to the live internet.

Anthropic Reviews More Than 140,000 AI Cybersecurity Tests The San Francisco-based AI company said it launched a broad review after rival OpenAI disclosed that one of its AI agents had breached systems connected to AI platform Hugging Face during a cybersecurity test.

In a blog post, Anthropic said it examined more than 140,000 test records to determine whether Claude had similarly reached beyond controlled testing environments.

The company identified three incidents and notified the affected organizations, though it did not disclose their names.

The tests involved "capture-the-flag" exercises, a common cybersecurity evaluation in which AI models are tasked with identifying vulnerabilities and obtaining protected information from computer systems.