Terra Classic
$40.00B
The biggest Web3 and DeFi exploits ranked by amount lost. Track high-impact incidents, study attack patterns, and learn how security failures scale into multi-million dollar losses.
$91B+
Total Value Lost
3595
Incidents Tracked
141
Chains Affected
65
$100M+ Incidents
$40.00B
$5.50B
$3.60B
$3.50B
$2.90B
$2.80B
$2.00B
$2.00B
$1.50B
$1.40B
Showing 1-50 of 3595 ranked incidents
| Rank | Project | Amount Lost | Date | Chain | Technique | Attack Guide | Source |
|---|---|---|---|---|---|---|---|
| 🥇 | Terra Classic | $40.00B | - | Other | — | View → | |
| 🥈 | Mantra | $5.50B | - | Other | — | View → | |
| 🥉 | Africrypt | $3.60B | - | Rugpull | — | View → | |
| 4 | LuBian | $3.50B | bitcoin | Private Key Compromised (Brute Force) / Weak Key Generation | Access Control Attacks | View → | |
| 5 | PlusToken | $2.90B | - | Rugpull | — | View → | |
| 6 | Genesis | $2.80B | - | Other | — | View → | |
| 7 | Thodex | $2.00B | - | Rugpull | — | View → | |
| 8 | BitConnect | $2.00B | - | Rugpull | — | View → | |
| 9 | Finiko | $1.50B | - | Rugpull | — | View → | |
| 10 | Bybit | $1.40B | ethereum | Safe Multisig wallet Phishing Exploit / Access Control / Signer Phishing | Access Control Attacks | View → | |
| 11 | HyperVerse | $1.30B | - | Rugpull | — | View → | |
| 12 | Celsius Network | $1.19B | - | Other | — | View → | |
| 13 | FTX Group | $1.00B | - | Other | — | View → | |
| 14 | WoToken | $1.00B | - | Rugpull | — | View → | |
| 15 | Bitcoin Sheikh | $766.0M | - | Other | — | View → | |
| 16 | Ronin | $625.0M | ethereum | Access Control / Private Key Compromised (Social Engineering) / Validator Key Compromised | Access Control Attacks | View → | |
| 17 | Poly Network | $611.0M | bsc, ethereum, polygon | Access Control Exploit / Other / Improper Access Control | Access Control Attacks | View → | |
| 18 | BSC Token Hub | $586.0M | bsc | Other / Proof Verifier Bug | Cross-Chain Bridge Attacks | View → | |
| 19 | Coincheck | $534.0M | nem | Private Key Compromised (Unknown Method) / Other / Hot Wallet Key Compromised | Access Control Attacks | View → | |
| 20 | FTX | $477.0M | ethereum, solana | Reported SIM-swapping connection | — | View → | |
| 21 | Mt. Gox | $473.0M | bitcoin | Other / Private Key Compromised | Access Control Attacks | View → | |
| 22 | MyCoin | $387.0M | - | Rugpull | — | View → | |
| 23 | Bitget | $351.6M | ethereum, tron, xrp, zcash | Access Control / Hot Wallet Key Compromised | Access Control Attacks | View → | |
| 24 | Phishing | $330.0M | - | Phishing | Phishing Attacks | View → | |
| 25 | Wormhole | $326.0M | solana | Other / Signature Exploit / Signature Verification Flaw | Access Control Attacks | View → | |
| 26 | Liquid Network | $320.0M | liquid | Other / Unbacked Cross-Chain Mint | — | View → | |
| 27 | DMM Bitcoin | $305.0M | bitcoin | Private Key Compromised (Unknown Method) / Access Control / Phishing | Access Control Attacks | View → | |
| 28 | Trade Coin Club | $295.0M | - | Other | — | View → | |
| 29 | Kelp DAO | $293.0M | arbitrum, ethereum | Access Control / Cross-Chain Message Spoofing | Access Control Attacks | View → | |
| 30 | PlayDapp | $290.0M | ethereum | Access Control / Hot Wallet Key Compromised | Access Control Attacks | View → | |
| 31 | LIBRA | $286.0M | - | Other | — | View → | |
| 32 | KuCoin | $285.0M | ethereum | Private Key Compromised (Unknown Method) / Hot Wallet Key Compromised | Access Control Attacks | View → | |
| 33 | Social Engineering Scam | $282.0M | - | Phishing | Phishing Attacks | View → | |
| 34 | Drift Protocol | $280.0M | solana | Access Control / Compromised Admin + Fake Token Price Manipulation / Proxy Upgrade Hijack | Access Control Attacks | View → | |
| 35 | Cetus CLMM | $260.0M | sui | Spoof Token Exploit / Other / Arithmetic Error | Arithmetic Overflow & Underflow Attacks | View → | |
| 36 | Gate | $235.0M | - | Private Key Compromised (Unknown Method) / Access Control / Private Key Compromised | Access Control Attacks | View → | |
| 37 | WazirX: India | $234.9M | ethereum | Safe Multisig wallet Phishing Exploit / Access Control / Signer Phishing | Access Control Attacks | View → | |
| 38 | Mixin Network | $200.0M | mixin | Database Attack / Other / Database Breach | — | View → | |
| 39 | Neutrino USD | $200.0M | - | Other | — | View → | |
| 40 | Euler Finance | $196.0M | ethereum | Flash Loan Attack / Flashloan Donate Function Logic Exploit / Donation Attack | Flash Loan Attacks | View → | |
| 41 | Bitmart | $196.0M | bsc, ethereum | Private Key Compromised (Unknown Method) / Hot Wallet Key Compromised / Access Control | Access Control Attacks | View → | |
| 42 | Nomad | $190.0M | ethereum | Trusted Root Exploit / Other / Forged Proof | Access Control Attacks | View → | |
| 43 | Beanstalk | $181.0M | ethereum | Flashloan Governance Attack / Flash Loan Attack | Flash Loan Attacks | View → | |
| 44 | BTC-e | $181.0M | - | Rugpull | — | View → | |
| 45 | BitGrail | $170.0M | nano | Other / Improper Access Control | Access Control Attacks | View → | |
| 46 | Wintermute | $160.0M | ethereum | Private Key Compromised (Brute Force) / Access Control / Phishing | Access Control Attacks | View → | |
| 47 | Token.Store | $160.0M | - | Rugpull | — | View → | |
| 48 | Parity Multisig | $150.0M | ethereum | Contract not initialized / Uninitialized Proxy / Other | Access Control Attacks | View → | |
| 49 | QuadrigaCX | $147.0M | - | Access Control | Access Control Attacks | View → | |
| 50 | Control Finance | $147.0M | - | Rugpull | — | View → |
Data sourced from DefiLlama & SunWeb3Sec/DeFiHackLabs . Thank you for keeping Web3 security data open.
The most expensive crypto hacks are not random. They cluster around repeating vulnerability patterns: access-control failures, flash-loan manipulation, oracle abuse, and unsafe external calls. Studying large-loss incidents helps security researchers prioritize high-impact threat models first.
For deeper context, explore the full Web3 Hacks Dashboard and our Smart Contract Attack Library for hands-on exploit and mitigation breakdowns.
Incidents are ranked by parsed USD amount lost in descending order. Records without parseable loss values are excluded from this ranking.
It includes all incidents with known loss values in the database. Use the full dashboard for broader filtering and lower-severity incidents.
Study attack-class pages first, then practice in guided exercises inside the Smart Contract Hacking course.
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