OpenAI Built a Lockdown Mode Because Tool-Based Data Exfiltration Is Real — Here's What Catches It Earlier

OpenAI doesn't ship defensive product features out of nowhere. When they announced Lockdown Mode for ChatGPT — a setting that explicitly restricts connected tools and integrations to prevent data exfiltration — that's a product team responding to something they've seen happen, or credibly modeled as likely to happen at scale. The signal is clear: LLM-connected tooling is a data exfiltration vector. The question for the rest of us building agentic systems isn't "did OpenAI fix it?" — it's "are w...