OpenAI has unveiled a new safeguard, "Lockdown Mode," designed to bolster defenses against prompt injection attacks, a method where malicious instructions for chatbots are subtly embedded within web pages and other digital content sources.
This new mode introduces several significant restrictions, including the cessation of live web browsing (limiting access to cached content exclusively), prohibiting the retrieval and display of images from the internet (though image generation remains functional), and deactivating both deep research capabilities and agent mode.
OpenAI explicitly states that even with Lockdown Mode activated, ChatGPT may not be entirely immune to prompt injection attacks. The company notes that such malicious prompts could, for instance, “appear in cached web content or in an uploaded file, and could still affect the behavior or accuracy of a response,” highlighting a residual risk.
Nevertheless, the overarching objective of this feature is to significantly diminish the probability of sensitive data being inadvertently exposed or shared during interactions.
OpenAI clarifies the target audience for this feature, stating, “Lockdown Mode is not intended for everyone.” Instead, it is specifically “designed for people and organizations that handle sensitive data and want stricter protection from data exfiltration risks related to prompt injection,” emphasizing its specialized purpose.
The company confirms that Lockdown Mode is presently being deployed to self-serve ChatGPT Business accounts, alongside certain eligible personal accounts.
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