# OpenAI to train models on Daybreak Blue data from Nov 29

Digest AI · Policy & Regulation · published 2026-10-31T16:38:37Z

Canonical: https://digestai.news/story/openai-to-train-models-on-daybreak-blue-data-from-nov-29

## Summary

OpenAI has announced that it will begin using Daybreak Blue cybersecurity session data to train its models starting November 29. An email sent to members of the Trusted Access program confirmed this shift, noting that such data was previously excluded from training even when users disabled the "improve the model for everyone" setting. The decision triggered immediate backlash, prompting OpenAI to send a follow-up email promising a separate opt-out mechanism for users who do not want their data used. However, the company clarified that interactions flagged during safety reviews may still be utilized for safety purposes. Researchers have expressed concern that this move could repeat the controversy surrounding the Buckmaster-Alpöge case. In that incident, mathematicians Tristan Buckmaster and Levent Alpöge uploaded drafts of Navier-Stokes equation proofs to OpenAI’s Codex. Although OpenAI denied using their specific inputs for training, it later presented a similar proof, raising suspicions about data leakage and training practices. This new policy change highlights ongoing tensions between model improvement goals and user privacy expectations in the AI industry.

## Key points

- OpenAI will use Daybreak Blue session data for training starting November 29.
- The data was previously excluded from training even if users opted out.
- OpenAI promised a separate opt-out after backlash from Trusted Access members.

## Why it matters

This policy change raises significant privacy concerns for cybersecurity professionals and researchers. It tests the boundaries of user consent in AI training and may influence how other companies handle sensitive data in their models.

## Sources

1. [OpenAI plans to train models on Daybreak Blue cybersecurity session data that was previously off-limits](https://the-decoder.com/openai-plans-to-train-models-on-daybreak-blue-cybersecurity-session-data-that-was-previously-off-limits) (The Decoder, 2026-10-31)

## Cite

Digest AI, "OpenAI to train models on Daybreak Blue data from Nov 29", 31 October 2026, https://digestai.news/story/openai-to-train-models-on-daybreak-blue-data-from-nov-29

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