OpenAI Codex Security

DA
Dave Aitel
Sat, Mar 7, 2026 7:22 PM

https://openai.com/index/codex-security-now-in-research-preview/

As you might have noticed we've released Codex Security and if you have a
ChatGPT business or enterprise or edu or pro subscription (which is most of
y'all) then you have access ! Just go to chatgpt.com/codex/security and
hopefully it pulls up cleanly for you. If not, probably my fault in some
way.

If you do have access then I'd love it if you would:

  1. Say what you think? You can just post your reasoned and informed
    analysis here.

  2. Play my reverse ctf: can you construct a realistically exploitable human
    spottable vulnerability (as a commit to a repo monitored by codex security)
    that does not get detected ? Can be anything. Post your best result here
    and we can explore human vs AI together.

Dave
(I'll think of a prize at some point :) )

https://openai.com/index/codex-security-now-in-research-preview/ As you might have noticed we've released Codex Security and if you have a ChatGPT business or enterprise or edu or pro subscription (which is most of y'all) then you have access ! Just go to chatgpt.com/codex/security and hopefully it pulls up cleanly for you. If not, probably my fault in some way. If you do have access then I'd love it if you would: 1. Say what you think? You can just post your reasoned and informed analysis here. 2. Play my reverse ctf: can you construct a realistically exploitable human spottable vulnerability (as a commit to a repo monitored by codex security) that does not get detected ? Can be anything. Post your best result here and we can explore human vs AI together. Dave (I'll think of a prize at some point :) )