Washington, D.C. — Rob Bair, head of cyber policy at Anthropic, addressed the AI+Expo on Thursday to outline the parameters of the new digital perimeter. OpenAI has accelerated the arms race by launching GPT-5.5-Cyber, a specialized vulnerability-patching model restricted exclusively to vetted professionals in its Trusted Access for Cyber program. This maneuver directly counters Anthropic's own gated release of its Mythos architecture, scaling up capabilities to analyze malware and secure legacy networks. The controlled rollout of Mythos was intended to "give network defenders a head start in finding vulnerabilities before hackers could," Bair said.

We are witnessing the absolute formalization of the 'Cognitive Enclosure.' The apex artificial intelligence firms are establishing private security cartels, systematically withholding autonomous defensive capabilities from the broader public and middle-market enterprises. By June 1, approved users must implement advanced account security simply to access OpenAI's defensive suite. This deliberate market bifurcation leaves legacy enterprise systems entirely exposed to the elements, while the technological vanguard erects impenetrable, AI-patrolled walls. For corporate capital, this is a mandatory toll: you either purchase elite entry into these walled digital gardens, or you accept terminal exposure to the next wave of algorithmic predation. The public internet is being abandoned to automated decay. True security is now a luxury asset class, accessible only to those possessing the capital and the clearance to lease time on OpenAI and Anthropic’s proprietary immune systems.