OpenAI launched an optional ‘Lockdown Mode’ in ChatGPT designed for high-risk users like executives and security teams. When enabled, it deterministically disables tools that could be exploited for prompt injection attacks — for example, web browsing is restricted to cached content so no live requests leave OpenAI’s network. The company is also adding ‘Elevated Risk’ labels across ChatGPT, Atlas, and Codex for features that introduce additional exposure. As AI agents take on more agentic tasks (browsing, connecting to apps), hard deterministic blocks are increasingly the only reliable defense. Via The Rundown AI. Read more