openai

How to Protect AI Agents From Prompt Injection With OpenAI Lockdown Mode

OpenAI's new Lockdown Mode hardens agents against prompt injection and data exfiltration. Here's what it defends against and how to build a layered protection posture around it.

06/07/2026 · AI Tutorials · 8 min read

OpenAI Lockdown Mode Explained: Defending AI Agents Against Prompt Injection

OpenAI's new Lockdown Mode is the first frontier-lab defense aimed squarely at prompt injection. Here's what it covers, what it can't stop, and the agent defenses you still owe yourself.

06/07/2026 · Industry Trends · 8 min read