Solidity vs Vyper: Security Differences Every Auditor Should Know

When I started building spectr-ai, one of the first decisions was which EVM languages to support. Solidity was obvious — it powers over 90% of deployed contracts. But Vyper kept showing up in DeFi protocols I was auditing, and the security differences between the two languages are more significant than most developers realize. This post breaks down where each language helps (and hurts) your contract's security posture, with concrete code examples. Solidity's Footgun Collection Solidity gives you