Web3 Hacks & DeFi Exploit Intelligence

  • $104B+Lost
  • 3836Incidents
  • 124Chains
  • 16Classes
# Project Date Amount Lost Chain Technique Links
181 Spartan Flash Loan Attacks $30.5M bsc Flashloan Pool Shares Exploit / Incorrect Share Accounting
182 Spartan Protocol Flash Loan Attacks $30.5M binance Flash Loan Attack
183 DEUS Finance Flash Loan Attacks $3.0M fantom Flashloan Price Oracle Attack / Spot Price Manipulation
184 Alpha Finance Flash Loan Attacks $37.5M ethereum Flashloan Pool Shares Exploit / Flash Loan Attack / Borrow Logic Flaw
185 Growth DeFi Flash Loan Attacks $1.4M ethereum Flashloan Price Oracle Attack / Rugpull / Missing Input Validation
186 BT.Finance Flash Loan Attacks $1.9M ethereum Flash Loan Attack
187 Yearn Finance Flash Loan Attacks $11.0M ethereum Flashloan Price Oracle Attack / Flash Loan Attack / Spot Price Manipulation
188 Warp Protocol Flash Loan Attacks $7.8M ethereum Flashloan Price Oracle Attack / Spot Price Manipulation
189 Warp Finance Flash Loan Attacks $7.8M ethereum Flash Loan Attack
190 Origin Protocol Flash Loan Attacks $8.0M ethereum Flashloan Reentrancy Attack / Flash Loan Attack / Reentrancy
191 CheeseBank Flash Loan Attacks $3.3M ethereum Flashloan Price Oracle Attack / Spot Price Manipulation
192 ValueDefi Flash Loan Attacks $7.4M ethereum Flashloan Price Oracle Attack / Flash Loan Attack / Spot Price Manipulation
193 Akropolis Flash Loan Attacks $2.0M ethereum Flashloan Reentrancy Attack / Flash Loan Attack / Reentrancy
194 Cheese Bank Flash Loan Attacks $3.3M ethereum Flash Loan Attack
195 Harvest Finance Flash Loan Attacks $33.8M ethereum Flashloan Price Oracle Attack / Flash Loan Attack / Spot Price Manipulation
196 Eminence Flash Loan Attacks $15.1M ethereum Flashloan Price Oracle Attack / Flash Loan Attack / Spot Price Manipulation
197 Balancer Flash Loan Attacks $524K ethereum Flash Loan Attack / Incorrect Share Accounting
198 bZx Flash Loan Attacks $666K ethereum Flash Loan Attack
199 Ooki Flash Loan Attacks $650K ethereum Flashloan Price Oracle Attack / Spot Price Manipulation
200 Ooki Flash Loan Attacks $350K ethereum Flashloan Slippage Attack / Spot Price Manipulation
201 bZx Flash Loan Attacks $356K ethereum Flash Loan Attack

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

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.