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 1601-1650 of 3595 ranked incidents

Largest Web3 incidents by USD amount lost
Rank Project Amount Lost Date Chain Technique Attack Guide Source
1601 Philcoin $103K - Rugpull — View →
1602 Dor $103K - Rugpull — View →
1603 Mars Meta Space $102K - Access Control Access Control Attacks View →
1604 Huma Finance V2 $101K polygon Improper Access Control Access Control Attacks —
1605 Yearn Machine Learning $100K ethereum Rugpull — View →
1606 KUKUCoin $100K - Rugpull — View →
1607 Zerion Wallet $100K - Hot Wallet Compromise via Social Engineering / Phishing Phishing Attacks View →
1608 PGNLZ token $100K bsc Flash Loan Attack / Incorrect Share Accounting Flash Loan Attacks View →
1609 DRLVaultV3 $100K ethereum Spot Price Manipulation Oracle Manipulation & Price Manipulation —
1610 QuantMaster $100K ethereum Backdoor Contract — —
1611 BYC Token $100K binance Incorrect Fee Accounting — —
1612 OPSEC $100K ethereum Private Key Compromised Access Control Attacks —
1613 LayerSwap $100K ethereum DNS Hijack — —
1614 Baby Doge Coin $100K - Flash Loan Attack Flash Loan Attacks View →
1615 POOPEPE token $100K - Rugpull — View →
1616 XCAD $100K - Rugpull — View →
1617 UNMS $100K - Flash Loan Attack Flash Loan Attacks View →
1618 SUI Token $100K - Rugpull — View →
1619 Ranger $100K - Rugpull — View →
1620 Formation.Fi $100K - Other — View →
1621 Coinbase $100K - Access Control Access Control Attacks View →
1622 Vertcoin $100K vertcoin Risk Parameter Abuse — —
1623 DMD $99K - Rugpull — View →
1624 Frontfanz $98K - Rugpull — View →
1625 ONTR $98K ethereum Ownership Takeover Access Control Attacks —
1626 FlashTrade $98K solana Missing Input Validation — View →
1627 Aphrodite Protocol $97K ethereum Rugpull — View →
1628 IEXCBP $97K bsc Spot Price Manipulation Oracle Manipulation & Price Manipulation —
1629 PRXVT $97K base Sybil Attack with CREATE2 Addresses / Staking Logic Flaw — View →
1630 Citadel Finance $97K arbitrum Flash Loan Attack / Improper Access Control Access Control Attacks View →
1631 GN $96K - Rugpull — —
1632 OBB $96K - Rugpull — View →
1633 Alkimiya $96K ethereum Arithmetic Error — —
1634 Safe Dollar $95K polygon Other — View →
1635 Pine Protocol $95K ethereum Swap Logic Flaw — —
1636 Pepe Coin $95K - Rugpull — View →
1637 CityDAO $95K ethereum Access Control / Phishing Access Control Attacks View →
1638 Citizen Finance $94K bsc, polygon Access Control / Private Key Compromised Access Control Attacks View →
1639 OkayLetsGo $94K - Rugpull — View →
1640 APE $94K - Rugpull — —
1641 Hegic(old contract) $94K ethereum Unlimited repeated withdrawal exploit / Withdrawal Logic Flaw — View →
1642 Marvel Metauniverse $94K - Rugpull — View →
1643 Sloth Climb $94K - Rugpull — View →
1644 Nifity $93K ethereum Rugpull — View →
1645 warp.green $93K chia, ethereum Bridge Logic Flaw — View →
1646 Ramses $93K arbitrum Other / Reward Logic Flaw — View →
1647 TRT $93K - Rugpull — View →
1648 MCN Labs $93K - Other — View →
1649 FastSwap $93K - Other — View →
1650 Dividend Token $92K ethereum 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.