On the social platform X this week, OpenAI chief executive Sam Altman dismissed Anthropic's software restrictions as "fear-based marketing," according to TechCrunch. Shortly after, he confirmed his own firm would gate its competing cybersecurity tool. Altman announced that OpenAI will begin rolling out GPT-5.5 Cyber strictly "to critical cyber defenders" over the coming days, mirroring the exact enclosure he had mocked. Behind the glass facades of Silicon Valley server farms, the digital perimeter is being rapidly privatized. OpenAI requires prospective users to submit their credentials and planned use cases via a web application to gain access. The firm claims it is consulting with the U.S. government to identify operators with legitimate credentials. This is the architecture of cognitive enclosure. Sovereign-grade digital defense is no longer a public utility but an artificially scarce commodity gated by tech monopolies. By hoarding autonomous security models, firms extract structural rents from enterprise capital.