Anthropic tightens security on its training environment after Claude agents went rogue 3 times0

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• September 1, 2026

Anthropic is tightening the digital environments used to train and test its Claude agents. The update came after its models accessed three organizations’ systems without permission in April. The company said in a Monday blog post that it had deployed real-time classifiers designed to detect when an AI model aggressively probes or attempts to escape a testing