Useful sources

• solidity-patterns

• solcurity

• Smart Contract Security Verification Standard

• Consensys Smart-contract-best-practices

• Security Pitfalls & Best Practices 101

• Security Pitfalls & Best Practices 201

• SWC Registry

• Kaden: Smart Contract Attack Vectors

• Solidity Attack Vectors

• Common Vulnerabilities in Smart contracts MindMap

• VigilSeek bug bounty aggregator

• VigilSeek telegram alerts channel