Most Expensive Crypto Hacks Leaderboard

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

Top 10 Biggest Hacks

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  1. 🥈

    Mantra

    $5.50B

  2. #4

    LuBian

    $3.50B

    bitcoin

  3. #7

    Thodex

    $2.00B

  4. #9

    Finiko

    $1.50B

  5. #10

    Bybit

    $1.40B

    ethereum

Where the Largest Losses Concentrate

Top Chains by Losses

  • ethereum $9,830M
  • bitcoin $5,404M
  • bsc $3,037M
  • solana $1,697M
  • polygon $1,539M

Top Techniques by Losses

  • Other $52,517M
  • Rugpull $15,631M
  • Private Key Compromised (Brute Force) / Weak Key Generation $3,500M
  • Safe Multisig wallet Phishing Exploit / Access Control / Signer Phishing $1,635M
  • Access Control / Hot Wallet Key Compromised $1,027M

Full Leaderboard

Showing 1-50 of 3595 ranked incidents

Largest Web3 incidents by USD amount lost
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.

Understanding the Pattern Behind Billion-Dollar Losses

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.

Frequently Asked Questions

How is this leaderboard ranked?

Incidents are ranked by parsed USD amount lost in descending order. Records without parseable loss values are excluded from this ranking.

Does this include every attack type?

It includes all incidents with known loss values in the database. Use the full dashboard for broader filtering and lower-severity incidents.

How can I learn to prevent these exploits?

Study attack-class pages first, then practice in guided exercises inside the Smart Contract Hacking course.

Learn to Prevent High-Impact Smart Contract Hacks

$91B+ lost to preventable vulnerabilities. Master real exploit patterns and defense techniques with hands-on Web3 security training.