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OpenAI Adds Lockdown Mode
OpenAI's new Lockdown Mode protects against prompt injection by restricting agent access to external web tools.
What: Lockdown Mode disables high-risk features like live browsing, deep research, and agent-driven execution to minimize exposure to malicious external input.
Why it matters: This is a direct response to the vulnerability of LLMs to prompt injection, where attackers embed hidden instructions in websites to compromise the model's behavior.
Takeaway: If you are processing untrusted web data in your agent workflows, enable Lockdown Mode to restrict the surface area for prompt injection attacks.
Decoder
- Prompt injection: A security vulnerability where malicious input is used to hijack an LLM, causing it to ignore its original instructions and execute unauthorized commands.
Original article
OpenAI introduced Lockdown Mode to reduce exposure to prompt injection attacks from webpages and external content. The feature disables live browsing, web image retrieval, deep research, and agent mode while keeping some cached content and image-generation functionality available.
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