As concerns around AI security continue to grow, OpenAI has launched a new protection feature for ChatGPT aimed at reducing the risk of sensitive information being exposed through prompt injection attacks. The new feature, called Lockdown Mode, is available as an optional security setting for personal, business, and enterprise users.
According to OpenAI, Lockdown Mode is designed to prevent unauthorised data transfers by restricting network-based activities that could be exploited by attackers. While the feature does not stop malicious prompts from appearing in files, documents, or web content processed by ChatGPT, it focuses on blocking attempts to extract and transmit sensitive information.
Prompt injection attacks occur when hidden instructions are embedded within content that an AI model processes. These instructions can influence the chatbot’s behaviour and potentially lead to the disclosure of confidential data.
When Lockdown Mode is activated, several internet-connected features become restricted. Live web browsing is limited to cached information, while Deep Research and Agent Mode are completely disabled. Users will also be unable to download files for data analysis, although manual file uploads will continue to function. OpenAI notes that some search results may become incomplete or outdated under these restrictions.
The feature also limits access to apps, connectors, and external integrations. Live connector access, write actions, shopping-agent capabilities, and financial integrations are blocked while Lockdown Mode remains enabled. However, synced experiences continue to work for eligible personal and business accounts.
OpenAI clarified that Lockdown Mode does not affect memory features, conversation sharing, image generation, model training preferences, or network access within Codex. It also cannot be used alongside Developer Mode, as enabling one automatically disables the other.
Users can activate the feature by navigating to Settings > Security > Advanced Security > Lockdown Mode within ChatGPT.
The company has started rolling out Lockdown Mode to eligible Free, Go, Plus, Pro, and self-serve Business users, offering an additional layer of protection as AI-related security threats continue to evolve.
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