# OpenAI unveils Lockdown Mode to protect sensitive data from prompt injection attacks

_Thursday, June 25, 2026 at 9:00 PM EDT · Cybersecurity · Latest · Tier 2 — Notable_

![OpenAI unveils Lockdown Mode to protect sensitive data from prompt injection attacks — Primary](https://techcrunch.com/wp-content/uploads/2025/04/GettyImages-2201630077.jpg?resize=1200,798)

OpenAI announced a new feature called Lockdown Mode. The feature provides additional protection from prompt injection attacks. In these attacks malicious chatbot instructions are hidden in web pages and other content sources.

Lockdown Mode disables live web browsing so users can only access cached content. It disables the retrieval and display of images from the web although image generation remains available. Deep research and agent mode are also turned off.

The company acknowledges that even with Lockdown Mode turned on ChatGPT could still be vulnerable to prompt injections. These could appear in cached web content or in an uploaded file. They could still affect the behavior or accuracy of a response.

The goal is to reduce the likelihood that sensitive data gets shared in the process. OpenAI says Lockdown Mode is not intended for everyone. It is designed for people and organizations that handle sensitive data and want stricter protection from data exfiltration risks related to prompt injection.

The company is currently rolling Lockdown Mode out to self-serve ChatGPT Business accounts as well as eligible personal accounts.

## Sources

- [TechCrunch](https://techcrunch.com/2026/06/06/openai-unveils-lockdown-mode-to-protect-sensitive-data-from-prompt-injection-attacks/)

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Canonical: https://techandbusiness.org/newswire/dwShKCC5FBZlnWiQ1HTJe4
Retrieved: 2026-06-26T04:33:59.665Z
Publisher: Tech & Business (techandbusiness.org)