Please do not open a public issue for security problems.
Report privately through GitHub: go to the repository's Security tab → Report a vulnerability (this opens a private advisory). If you can't use that, email daveproxy80@gmail.com.
Include what you can: affected component, steps to reproduce, and impact. We aim to acknowledge within a few days and will coordinate a fix and disclosure with you.
This is testnet, pre-production software. The smart contracts have not yet been audited. Treat anything on-chain as experimental until a release notes otherwise.