Web3 Hacks & DeFi Exploit Intelligence

$101B+
Total Value Lost
3299
Incidents Tracked
74
Chains Affected
15
Attack Classes

Search the Incident Console

Start with a project name, narrow by chain or exploit class, then open the incident write-up and sources.

# Project Date Amount Lost Chain Technique Links
181 Warp Protocol Flash Loans Attacks $7.8M ethereum Flashloan Price Oracle Attack
182 Warp Finance Flash Loans Attacks $7.8M ethereum Flash Loan Attack
183 Origin Protocol Flash Loans Attacks $8.0M ethereum Flashloan Reentrancy Attack / Flash Loan Attack
184 CheeseBank Flash Loans Attacks $3.3M ethereum Flashloan Price Oracle Attack
185 ValueDefi Flash Loans Attacks $7.0M ethereum Flashloan Price Oracle Attack / Flash Loan Attack
186 Akropolis Flash Loans Attacks $2.0M ethereum Flashloan Reentrancy Attack / Flash Loan Attack
187 Cheese Bank Flash Loans Attacks $3.3M ethereum Flash Loan Attack
188 Harvest Finance Flash Loans Attacks $33.8M ethereum Flashloan Price Oracle Attack / Flash Loan Attack
189 Eminence Flash Loans Attacks $15.1M ethereum Flashloan Price Oracle Attack / Flash Loan Attack
190 Balancer Flash Loans Attacks $524K ethereum Flash Loan Attack
191 bZx Flash Loans Attacks $666K ethereum Flash Loan Attack
192 Ooki Flash Loans Attacks $650K ethereum Flashloan Price Oracle Attack
193 Ooki Flash Loans Attacks $350K ethereum Flashloan Slippage Attack
194 bZx Flash Loans Attacks $356K ethereum Flash Loan Attack

Data sourced from DefiLlama & SunWeb3Sec/DeFiHackLabs . Thank you for keeping Web3 security data open.

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Understanding Smart Contract Vulnerabilities

Smart contract vulnerabilities remain the leading cause of DeFi protocol losses, with over $10 billion stolen since 2016. Understanding attack vectors like reentrancy, flash loans, and oracle manipulation is essential for every blockchain developer and security researcher.

Each incident in our database is categorized by attack class and linked to our in-depth vulnerability guides, making this the most educational Web3 hacks tracker available. Want a quick ranking? See the most expensive crypto hacks leaderboard.

Learn how these hacks actually worked

Study the exploit patterns behind the incidents in this database, then practice finding them before attackers do.