OpenAI’s GPT-5.3 Codex Triggers ‘High’ Cyber Risk Flag — and Access Is Tightening
OpenAI has started deploying GPT-5.3-Codex, a fresh “agentic” coding model that goes beyond just writing code — it can actually perform tasks on a computer. At the same time, the company is beefing up safeguards around its most sensitive cybersecurity applications. This shift is critical as AI coding tools evolve beyond simple autocomplete functions to systems capable of executing commands, retrieving data, and handling extended tasks. Such capabilities appeal to software teams racing to meet deadlines—and to attackers eager to accelerate their search for vulnerabilities.