ExactOdds is a fairness protocol. A bug that lets a game produce different results on different seats, lets a tampered rule pack pass the gate, or lets a receipt verify against the wrong source is a security issue, not a normal bug.

Please do not open a public issue for security problems.

• Email: corey@slidphilabs.com with the subject line ExactOdds security
• Or use GitHub's private vulnerability reporting on this repository (Security tab, "Report a vulnerability")

Include the affected file or rule pack, the seat(s) involved, steps or inputs to reproduce, and what you expected versus what happened.

You can expect an acknowledgement within 3 business days. We will keep you updated while we investigate and credit you in the changelog unless you prefer to stay anonymous.

• Seat divergence: any input where py, js, ts, c, or cpp output differs
• Gate bypass: a modified .exactodds source that still reports PASS
• Receipt or source-hash mismatches
• Commit-reveal weaknesses in the reference games (seed handling, bias)
• The exactodds and exactodds-mcp npm packages and exactodds-api

• Operator deployments we do not run
• Social engineering, spam, or denial-of-service against hosted demos