📅 October 31, 2026 • The Decoder

OpenAI is changing how it handles data from Daybreak Blue, the company's Capture-The-Flag cybersecurity training environment. Starting November 29, 2026 , according to the email OpenAI sent to Trusted Access members, session data from these practice exercises on personal accounts will be used for model training, while Business and Enterprise accounts and Zero Data Retention setups stay unaffected. Until now this category of data was excluded from training entirely, even when users had switched off the "improve the model for everyone" option in their settings. In other words, the general toggle did not govern this particular data, and it stayed out of the training pipeline regardless of user preferences. From November 29 the general toggle no longer protects these sessions, which is why a dedicated opt-out was promised.…