Palo Alto Networks launches always-on AI security testing built on Claude Mythos and GPT-5.6-Cyber

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Palo Alto Networks is launching a subscription service that puts Anthropic and OpenAI models to work hunting for weaknesses in customers’ systems around the clock.

Its threat research and consulting arm, Unit 42, announced the service today, called Continuous Frontier AI Defense.

The service is built on models whose access is tightly controlled: Anthropic’s Claude Mythos 5 and OpenAI’s GPT-5.6-Cyber, both designed for cybersecurity work, plus open-weight models.

“Claude Mythos found flaws that survived decades of human review, and more than ten thousand high-severity vulnerabilities across the software the world runs on,” said Michael Moore, Cybersecurity Lead, Anthropic.

Unit 42’s own software decides which model handles each task, which the company says improves results and keeps costs down.

“AI has created an asymmetric advantage for threat actors against organizations trying to defend at human speed. Modern cybersecurity requires machine-speed defense.

We’re combining Unit 42’s offensive testing and threat intelligence expertise...

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