Web3 Hacks & DeFi Exploit Intelligence
- $104B+Lost
- 3836Incidents
- 124Chains
- 16Classes
| # | Project | Date | Amount Lost | Chain | Technique | Links |
|---|---|---|---|---|---|---|
| 61 | Wanchain Signature Verification Flaw | $10.0M | cardano | Signature Verification Flaw | ||
| 62 | Ostium | $60K | — | — | ||
| 63 | Allbridge Flash Loan Attacks | $1.6M | solana | Flash Loan Attack / Withdrawal Logic Flaw | ||
| 64 | FlyCow Incorrect Share Accounting | $65K | bsc | Incorrect Share Accounting | ||
| 65 | Across Spoofed Event Log | $4.5M | solana | Spoofed Event Log | ||
| 66 | CrowdRingCircle Incorrect Share Accounting | $209K | bsc | Incorrect Share Accounting | ||
| 67 | DeFiTuna Swap Logic Flaw | $580K | solana | Swap Logic Flaw | ||
| 68 | Zunami Protocol - Case File | $3.0M | — | — | ||
| 69 | Cascade Liquidity Strategy Oracle Manipulation & Price Manipulation | $1.3M | arbitrum | Spot Price Manipulation | ||
| 70 | TeleSwap Hot Wallet Key Compromised | $735K | bitcoin | Hot Wallet Key Compromised | ||
| 71 | Cascade Other | $1.3M | — | Other | ||
| 72 | Ostium Access Control Attacks | $24.0M | arbitrum | Oracle Issue / Private Key Compromised | ||
| 73 | BarnBridge Malicious Proposal | $776K | ethereum | Malicious Proposal | ||
| 74 | Drips Network Arithmetic Error | $25K | ethereum | Arithmetic Error | ||
| 75 | Bonzo Finance | $9.1M | — | — | ||
| 76 | Chi Protocol Redeem Logic Flaw | $8K | ethereum | Redeem Logic Flaw | ||
| 77 | Lumi Finance Signature Verification Flaw | $270K | arbitrum | Signature Verification Flaw | ||
| 78 | PHX Incorrect Share Accounting | $90K | bsc | Incorrect Share Accounting | ||
| 79 | BlueMove DEX Incorrect Share Accounting | $529K | sui | Incorrect Share Accounting | ||
| 80 | Bonzo Oracle Manipulation & Price Manipulation | $9.1M | hedera | Oracle Issue / Spot Price Manipulation | ||
| 81 | BonkDAO | $19.3M | — | — | ||
| 82 | Summer Finance | $6.0M | — | — | ||
| 83 | BFB Incorrect Share Accounting | $198K | bsc | Incorrect Share Accounting | ||
| 84 | BonkDAO Access Control Attacks | $21.0M | solana | Access Control / Malicious Proposal | ||
| 85 | Summer.fi Flash Loan Attacks | $6.0M | — | Flash Loan Attack | ||
| 86 | Lazy Summer Protocol Donation Attack | $6.0M | ethereum | Donation Attack | ||
| 87 | Hinkal Deposit Logic Flaw | $820K | ethereum | Deposit Logic Flaw | ||
| 88 | Digging for Gold | $39.0M | — | — | ||
| 89 | Edel Finance Oracle Manipulation & Price Manipulation | $353K | — | Oracle Issue | ||
| 90 | Edel Oracle Manipulation & Price Manipulation | $403K | ethereum | Spot Price Manipulation |
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.