# Documentation

- [Security Department Best Practices](/security-department/documentation/security-department-best-practices.md)
- [ERC 223 Token Standard](/security-department/documentation/erc-223-token-standard.md)
- [ERC20 Standard Main Issue](/security-department/documentation/erc-223-token-standard/erc20-standard-main-issue.md)
- [CallistoNFT Standard](/security-department/documentation/callistonft-standard.md)
- [Roadmap](/security-department/documentation/callistonft-standard/roadmap.md)
- [Cross-Chain Bridges Security Model](/security-department/documentation/cross-chain-bridges-security-model.md)