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OpenAI Unveils Lockdown Mode to Protect Sensitive Data From Prompt Injection Attacks

The optional setting limits network requests and disables some tools, and OpenAI says it is aimed at users handling sensitive data.

  • OpenAI has rolled out Lockdown Mode, an optional security setting designed to offer users advanced protection against prompt injection attacks.
  • As AI usage has skyrocketed in recent years, prompt injection attacks have become a critical security issue where attackers hide malicious instructions within content like PDF files or websites.
  • Enabling this mode limits outbound network requests and disables features like Deep Research and Agent Mode, restricting web browsing to cached content only.
  • While the feature reduces the likelihood of attackers extracting sensitive data, OpenAI notes it does not affect conversation memory or file uploads; workspace administrators retain separate controls in enterprise settings.
  • Designed specifically for handling sensitive data, this tool is not intended for everyone, as most users do not need it; users can enable it via ChatGPT Settings under Advanced Security.
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technewstube.com broke the news on Friday, June 5, 2026.
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