Booz Allen launches a counter-AI product and reports playbooks that cut autonomous-attacker success by more than 95%
Announcing the Cyber Weapon Index results, Booz Allen introduced Vellox Labs Guile, a counter-AI product that plants deceptive signals across a network to steer autonomous attackers toward controlled routes and decoys rather than real systems. The company says coordinated counter-AI playbooks “reduced autonomous attacker success by more than 95%” in its own evaluations; the release names no independent evaluator and no outside party has reproduced the figure.
Booz Allen runs 18 models as autonomous attackers and says one completed a full intrusion unaided
Booz Allen's Cyber Weapon Index ran 18 leading US and Chinese models against production-grade enterprise networks, each controlling a real attacker machine with no curated tool menu, and reports that one model — Anthropic's Claude Mythos — executed the full cyber kill chain autonomously, four more reached full domain access and control, four managed lateral movement, two progressed through credential access and all but one penetrated the network, with no substantial separation between the US and Chinese models. The accompanying report scores Claude Mythos at 80, Grok-4.5 at 49, GPT-5.6 Sol at 46 and Muse Spark 1.1 at 38, says a lower-ranked model paired with an attack harness rivalled the top scorer, and states that “the model is no longer the unit of risk. The system is.”
HiddenLayer raises a $100 million Series B for AI runtime security
The AI-security company HiddenLayer announced a $100 million Series B led by Delta-v Capital, with Ten Eleven Ventures, Morgan Stanley, Microsoft's M12 and Booz Allen participating, following a $50 million Series A in 2023. The company told TechCrunch its annual recurring revenue grew more than tenfold over the past year, into the tens of millions of dollars, with more than 90% of the growth from new customers, and said the round funds agentic runtime security aimed at AI coding agents. No valuation was disclosed.