Web3 Hacks & DeFi Exploit Intelligence
- $104B+Lost
- 3836Incidents
- 124Chains
- 16Classes
| # | Project | Date | Amount Lost | Chain | Technique | Links |
|---|---|---|---|---|---|---|
| 241 | Polyhedra Network Access Control Attacks | $760K | bsc | Private Key Compromised | ||
| 242 | Unizen Access Control Attacks | $2.1M | ethereum | External Call Vulnerability / Arbitrary External Call | ||
| 243 | ALP Access Control Attacks | — | bsc | Improper Access Control | ||
| 244 | Shido Access Control Attacks | $3.3M | ethereum | Private Key Compromised / Access Control | ||
| 245 | Seneca Access Control Attacks | $6.5M | arbitrum, ethereum | Token approval exploit / Access Control / Token Approval Abuse | ||
| 246 | Swarm Markets Access Control Attacks | $473K | ethereum | Improper Access Control | ||
| 247 | Jeffrey Zirlin Access Control Attacks | $9.7M | — | Access Control | ||
| 248 | FixedFloat Access Control Attacks | $26.1M | bitcoin, ethereum | Private Key Compromised / Key Leaked via Infrastructure | ||
| 249 | Fixed Float Access Control Attacks | $26.1M | — | Access Control | ||
| 250 | DuelBits Access Control Attacks | $4.6M | ethereum | Private Key Compromised / Access Control / Malware | ||
| 251 | PlayDapp Access Control Attacks | $290M | ethereum | Access Control / Hot Wallet Key Compromised | ||
| 252 | Chris Larsen Access Control Attacks | $112M | — | Access Control | ||
| 253 | Citadel.one Access Control Attacks | $93K | arbitrum | Improper Access Control | ||
| 254 | Saga DAO Access Control Attacks | $66K | solana | Access Control / Private Key Compromised | ||
| 255 | GAMEE Access Control Attacks | $16.4M | — | Access Control | ||
| 256 | Concentric Access Control Attacks | $1.7M | arbitrum | Private Key Compromised (Social Engineering) / Access Control / Phishing | ||
| 257 | BasketDAO Access Control Attacks | $1.2M | ethereum | Arbitrary External Call | ||
| 258 | Hector Network Access Control Attacks | $2.7M | ethereum | Improper Access Control | ||
| 259 | Orbit Chain Access Control Attacks | $81.6M | — | Access Control | ||
| 260 | Locus Finance Access Control Attacks | $321K | arbitrum, ethereum | Private Key Compromised (Unknown Method) / Private Key Compromised | ||
| 261 | Telcoin Access Control Attacks | $1.3M | polygon | Uninitialized Proxy | ||
| 262 | Flooring Protocol Access Control Attacks | $1.6M | ethereum | Arbitrary External Call | ||
| 263 | OKX DEX Access Control Attacks | $2.7M | ethereum | Private Key Compromised (Unknown Method) / Private Key Compromised | ||
| 264 | OKX Access Control Attacks | $2.4M | — | Access Control | ||
| 265 | HECO Access Control Attacks | $86.3M | — | Access Control | ||
| 266 | HTX Access Control Attacks | $21.9M | — | Access Control | ||
| 267 | Heco Bridge Access Control Attacks | $86.6M | ethereum | Private Key Compromised (Unknown Method) / Hot Wallet Key Compromised | ||
| 268 | Huobi Access Control Attacks | $26.4M | ethereum | Private Key Compromised (Unknown Method) / Hot Wallet Key Compromised | ||
| 269 | Binance User Access Control Attacks | $27.1M | — | Access Control | ||
| 270 | Samudai Access Control Attacks | $1.3M | ethereum | Access Control / Hot Wallet Key Compromised |
Data sourced from DefiLlama & SunWeb3Sec/DeFiHackLabs . Thank you for keeping Web3 security data open.
Hack Radar
Fresh DeFi incidents the moment they land in our database. Verified by trusted sources; auto-ingested entries are flagged for review.
Explore by Attack Type
Access Control Attacks
Arithmetic Overflow & Underflow Attacks
Delegatecall & Call Injection Attacks
Flash Loan Attacks
Oracle Manipulation & Price Manipulation
Reentrancy
DAO Governance Attacks
Frontrunning & Sandwich Attacks
Phishing Attacks
DOS Attacks
Replay Attacks
Self-Destruct Attacks
Sensitive On-Chain Data
Weak Randomness Attacks
Unchecked Return Value Attacks
Timestamp Manipulation Attacks
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.