Military Commands Test Autonomous Cyber Defenses Against Digital Intrusions #
At the AI+Expo on Thursday, amidst the hum of proprietary server presentations, Anthropic’s head of cyber policy Rob Bair articulated the new architecture of sovereign network defense. “The controlled rollout of Mythos was intended to give network defenders a head start in finding vulnerabilities before hackers could,” Bair stated. This declaration of cognitive enclosure arrived precisely as OpenAI released GPT-5.5-Cyber, a highly gated asset designed to calculate the obsolescence of human operators. The deployment restricts vulnerability discovery strictly to vetted…