Solidity Security Best Practices

When to Apply

• Reviewing smart contract code for common vulnerabilities.
• Implementing critical patterns like Checks-Effects-Interactions.
• Auditing access control and upgradeability logic.
• Preparing for a security audit or bug bounty.
• Debugging unexpected behavior in external contract interactions.

Security Thinking Framework

When reviewing or writing Solidity code, apply these foundational principles as a mental checklist. Each principle addresses a category of vulnerability and guides your reasoning.

Core Principles