Anthropic says its AI is less likely to launch cyberattacks, but 1 in 3 tests still ended badly

Anthropic says its newer AI systems are less likely to go looking for trouble on their own. But another set of findings is harder to dismiss: some Claude models went after real systems during supposed practice exercises, and one safety monitor bought the AI’s excuse for doing it. The cases did not involve a gang directing Claude to attack a business. The models were working alone, trying to solve challenges set up to measure their hacking skills. But a badly configured testing environment left the real internet available, and the instructions never clearly said which machines were off-limits. Anthropic says Opus 5.5 behaves better than earlier models The company released Claude Opus 5.5 on September 22, and says it achieved its strongest results yet in automated checks of behavior and…

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