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

Jump to full leaderboard
  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 301-350 of 3595 ranked incidents

Largest Web3 incidents by USD amount lost
Rank Project Amount Lost Date Chain Technique Attack Guide Source
301 Nexus Mutual $8.0M ethereum Key Leaked via Infrastructure — —
302 Origin Protocol $8.0M ethereum Flashloan Reentrancy Attack / Flash Loan Attack / Reentrancy Flash Loan Attacks View →
303 LCX $7.9M ethereum Hot-wallet compromise; initial access unknown Access Control Attacks View →
304 Anyswap $7.9M bsc, ethereum, fantom Access Control / Private Key Compromised (Bad ECDSA Implementation) / Weak Key Generation Access Control Attacks View →
305 NoOnes $7.9M binance, ethereum, solana, tron Cross-Chain Message Spoofing — —
306 Warp Protocol $7.8M ethereum Flash-loan manipulation of LP-token valuation Flash Loan Attacks View →
307 KICKICO $7.7M ethereum Hot Wallet Key Compromised — —
308 CoinDash $7.7M ethereum Frontend Attack / Frontend Compromise / Other — View →
309 DFX Finance $7.6M ethereum Other / Reentrancy Reentrancy View →
310 Yala $7.6M ethereum, solana Deployer Key Compromised — —
311 Exactly $7.6M optimism DebtManager Exploit / Improper Access Control / Reentrancy Access Control Attacks View →
312 Rho Markets $7.6M scroll Price Oracle Manipulation / Oracle Issue / Spot Price Manipulation Oracle Manipulation & Price Manipulation View →
313 Verus-Ethereum Bridge $7.5M verus Forged Proof / Other Cross-Chain Bridge Attacks View →
314 JaredFromSubway.eth MEV Bot $7.5M ethereum Other / MEV Bot Drained — View →
315 CoinsPaid $7.5M bsc, ethereum Hot Wallet Key Compromised — —
316 Jimbos Protocol $7.5M arbitrum Flashloan Slippage Attack / Other / Spot Price Manipulation Flash Loan Attacks View →
317 BitBNS $7.5M - Other / Private Key Compromised (Unknown Method) / Key Leaked via Infrastructure Access Control Attacks View →
318 Hundred Finance $7.4M optimism Flashloan Donate Function Logic Exploit / Oracle Issue / Donation Attack Flash Loan Attacks View →
319 ValueDefi $7.4M ethereum Flashloan Price Oracle Attack / Flash Loan Attack / Spot Price Manipulation Flash Loan Attacks View →
320 Fantom Foundation $7.4M - Suspected private-key compromise Access Control Attacks View →
321 DxSale $7.3M bsc Liquidity Rug Access Control Attacks View →
322 BurgerSwap $7.2M binance, bsc Flashloan Reentrancy Attack / Flash Loan Attack / Reentrancy Flash Loan Attacks View →
323 Duelbits $7.0M bitcoin, bsc, ethereum, tron Access Control Access Control Attacks View →
324 Saga $7.0M saga Infinite Mint and Dump / Other / Infinite Mint — View →
325 Odin.Fun $7.0M icp Liquidity valuation manipulation Oracle Manipulation & Price Manipulation View →
326 DAO Maker Vesting $7.0M ethereum Private Key Compromised (Unknown Method) / Other / Improper Access Control Access Control Attacks View →
327 FinNexus $7.0M bsc, ethereum Access Control / Private Key Compromised Access Control Attacks View →
328 DragonEx $7.0M bitcoin, eos, etc, ethereum, nem, ripple Rugpull / Key Leaked via Infrastructure — View →
329 Bondly $6.8M ethereum Private Key Compromised (Unknown Method) / Access Control / Phishing Access Control Attacks View →
330 Velocore V2 $6.8M linea, zksync era Fee Overflow Exploit / Other / Incorrect Fee Accounting Access Control Attacks View →
331 Luna Yield $6.7M solana Rugpull — View →
332 TrustedVolumes $6.7M ethereum Other / Caller Impersonation Access Control Attacks View →
333 Casper Network $6.7M casper Improper Access Control Access Control Attacks View →
334 Alchemix $6.5M ethereum Accidental debt forgiveness — View →
335 Terra $6.5M terra2 Other / IBC hooks exploit / Reentrancy Reentrancy View →
336 Seneca $6.5M arbitrum, ethereum Token approval exploit / Access Control / Token Approval Abuse Access Control Attacks View →
337 Magnate Finance $6.5M base Drained Contracts / Rugpull / Treasury Misappropriation — View →
338 DEUS Finance $6.5M arbitrum, bsc, ethereum Reversed allowance lookup — View →
339 VeChain $6.5M vechain Private Key Compromised Access Control Attacks —
340 PicoStocks $6.4M - Access Control Access Control Attacks View →
341 Abracadabra Money $6.4M ethereum Other / Borrow Logic Exploit / Rounding Error Arithmetic Overflow & Underflow Attacks View →
342 Gamma Strategies $6.4M arbitrum Flash Loan Attack / Price Manipulation Attack / Spot Price Manipulation Flash Loan Attacks View →
343 Chain Fusion $6.4M ethereum Private Key Compromised Access Control Attacks —
344 AniMoon $6.3M - Rugpull — View →
345 Belt Finance $6.3M binance, bsc Flashloan Price Oracle Attack / Flash Loan Attack / Incorrect Share Accounting Flash Loan Attacks View →
346 Wemix $6.2M wemix Private Key Compromised Access Control Attacks —
347 Hundred Finance $6.2M gnosis chain Flashloan Reentrancy Attack / Other / Reentrancy Flash Loan Attacks View →
348 Safuu Protocol $6.1M - Rugpull — View →
349 Summer.fi $6.0M ethereum NAV / Share-Price Manipulation Flash Loan Attacks View →
350 Adapter Vault Drain $6.0M - Access Control Access Control Attacks 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

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