ZDNET’s key takeaways

In testing, Claude submitted false forms and exploited software flaws.

Models routinely take shortcuts to pass evaluations.

Anthropic downplayed concerns, but these actions form a pattern.

Anthropic has released new reporting on Claude’s behavior in testing and other internal evaluations — and the findings indicate a concerning pattern.

Also: Rogue AI incidents hit ‘tens of thousands’

On Friday, the company detailed several “unintended” actions its models had taken recently while completing certain benchmarks. Framing Claude’s actions as less serious than the breaches both Anthropic and OpenAI agents were involved in earlier this summer, the report details how Claude Haiku 4.5 was generating example tasks on “randomly selected webpages.”

It came across a page about an unsolved homicide case and filled out a tip form with the Philadelphia police , saying, “I may have information regarding this case.…