Senior Brother's Insights

Apr 23, 2018 · Blockchain

How to Prevent Critical Solidity Bugs: Overflow, Underflow, Visibility, Delegatecall & Reentrancy

This article explains common Solidity vulnerabilities—including overflow, underflow, function visibility pitfalls, delegatecall misuse, and reentrancy attacks—illustrates each issue with concrete code examples, and shows how to mitigate them using SafeMath and proper contract design.