A cheap piece of software erased Booz Allen’s own AI threat ranking

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Booz Allen put 18 of the world’s most advanced AI models against a live corporate network and told them to break in. One of them finished the job. The consulting firm says the ranking it produced is the wrong thing to take away from it.

The Cyber Weapon Index, published on Wednesday, scored nine American and nine Chinese models. It measured how far each could get through a real intrusion with nobody steering. Only Anthropic’s Claude Mythos reached the end. Jessica Lyons reported the findings for The Register on Wednesday evening.

What the test actually did

Each model got its own attacker machine and issued commands one at a time. Booz Allen gave them no tool menu and no supporting software, which was the point. The firm wanted to measure what a model can do alone, stripped of the engineering that normally surrounds it.

Scoring combined two halves. One...

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