Featured
Attack Vectors
The Reentrancy Attack: How the $60M DAO Hack Happened
In 2016, a reentrancy vulnerability in The DAO contract allowed an attacker to drain $60 million worth of ETH. 8 years later, reentrancy is still one of the most common smart contract vulnerabilities. Learn how it works and how to protect yourself.
5 min readBeginnerAttack Vectors
// Vulnerable
function withdraw() public {
uint amt = bal[msg.sender];
msg.sender.call{value:amt}("");
bal[msg.sender] = 0; // too late!
}
Token Safety
How to Detect a Honeypot Token Before You Get Trapped
Honeypot tokens let you buy but never sell. We break down 7 common honeypot patterns and how to spot them before investing.
7 min readIntermediate
Best Practices
The Smart Contract Security Checklist Every Developer Needs
A comprehensive pre-deployment checklist covering the 20 most critical security checks for Solidity contracts.
10 min readAll Levels
Token Safety
Anatomy of a Rugpull: 5 Warning Signs in the Contract Code
Most rugpulls leave traces in the contract code. Here are 5 red flags to look for before buying into any token project.
6 min readIntermediate
Vulnerabilities
Missing Access Control: The #1 Smart Contract Vulnerability
Missing or broken access control is the most frequently exploited vulnerability in DeFi. Learn the patterns and fixes.
8 min readBeginner
Attack Vectors
Flash Loan Attacks Explained: How $100M Was Stolen in Minutes
Flash loans enable uncollateralized borrowing in a single transaction. Here's how attackers weaponize them against DeFi protocols.
9 min readAdvanced