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New ChatGPT Lockdown Mode Implemented to Mitigate Data Exfiltration Risks



OpenAI has implemented a new feature known as Lockdown Mode for ChatGPT personal accounts to mitigate data exfiltration risks. This advanced security setting limits various tools and capabilities while providing enhanced protection against prompt injection attacks, underscoring OpenAI's commitment to safeguarding sensitive information.

  • OpenAI has introduced Lockdown Mode for eligible personal accounts to enhance security and minimize data exfiltration risks.
  • Lockdown Mode restricts various tools and capabilities, particularly those connecting to the web or external services.
  • The feature limits outbound network requests to prevent sensitive data transmission to attacker-controlled infrastructure.
  • Lockdown Mode disables features like live web browsing, image support, and file downloads to reduce prompt injection-based data exfiltration risks.
  • The feature cannot be used simultaneously with Developer Mode and may still leave some vulnerabilities open to attack.
  • A new account management feature allows users to review active sessions and log out if signs of unauthorized activity are detected.



  • THN Exclusive: In a significant development aimed at enhancing the security and integrity of its flagship language model, OpenAI has rolled out an innovative feature known as Lockdown Mode for eligible personal accounts. This cutting-edge tool is designed to minimize the risk of data exfiltration, a critical concern that arises from prompt injection attacks. By introducing this advanced security setting, OpenAI underscores its commitment to safeguarding sensitive information and protecting users against potential threats.

    Lockdown Mode is an optional advanced security setting that restricts various tools and capabilities within OpenAI products, particularly those that connect to the web or external services. This feature is primarily intended for individuals and organizations handling sensitive data, who require robust protection guarantees. The availability of Lockdown Mode is extended to logged-in users across different subscription plans, including Free, Go, Plus, and Pro, as well as self-serve ChatGPT Business plans.

    According to OpenAI, Lockdown Mode operates by limiting outbound network requests that could potentially transmit sensitive data to attacker-controlled infrastructure. This safeguard is based on existing controls and the principles of sandboxing, which are aimed at combating URL-based data exfiltration mechanisms. The primary objective of Lockdown Mode is not to prevent prompt injections altogether but rather to eliminate potential pathways through which data could be compromised.

    The feature disables several features that are crucial for users, including live web browsing, image support, deep research agent mode, canvas networking, and file downloads. By limiting these capabilities, Lockdown Mode significantly reduces the risk of prompt injection-based data exfiltration in ChatGPT and supported OpenAI products. However, it is essential to note that this feature does not provide absolute protection against all types of attacks or vulnerabilities.

    OpenAI has emphasized that both Lockdown Mode and Developer Mode cannot be used simultaneously, as enabling one disables the other. Furthermore, the company has acknowledged that while Lockdown Mode offers substantial security benefits, there may still be risks associated with prompt injection attacks, particularly if users enable applications or employ techniques that could potentially bypass the feature's safeguards.

    In a related development, OpenAI has also launched an account management feature that enables users to review active ChatGPT sessions and log out of individual or all sessions if signs of unauthorized activity are detected. This new feature provides enhanced security measures for users, allowing them to monitor their account activity and take prompt action in the event of potential breaches.

    The introduction of Lockdown Mode and its accompanying features is a testament to OpenAI's dedication to enhancing the security and integrity of its platform. As the landscape of cybersecurity continues to evolve, tools like Lockdown Mode play a crucial role in safeguarding sensitive information and protecting users against emerging threats.



    Related Information:
  • https://www.ethicalhackingnews.com/articles/New-ChatGPT-Lockdown-Mode-Implemented-to-Mitigate-Data-Exfiltration-Risks-ehn.shtml

  • https://thehackernews.com/2026/06/new-chatgpt-lockdown-mode-limits-tools.html


  • Published: Wed Jun 10 16:51:46 2026 by llama3.2 3B Q4_K_M













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