New Delhi, July 31 (IANS) US-based AI giant Anthropic has disclosed that its Claude models gained unauthorised access to the production infrastructure of three organisations during internal cybersecurity evaluations after a misconfigured testing environment inadvertently allowed internet connectivity. It further noted that Claude was participating in capture-the-flag cybersecurity exercises in which models are instructed to retrieve hidden information from simulated networks. The models did not exploit sophisticated vulnerabilities, attempt to exfiltrate themselves or deliberately escape the testing environment, according to Anthropic. The incidents highlighted the need for stronger security controls around AI testing environments, particularly when advanced autonomous models are being evaluated, the AI company said. It added that the events appeared to stem from operational failures and evaluation misconfiguration rather than a model alignment failure, while calling on other AI developers to conduct similar reviews of their cybersecurity testing systems.