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 2001-2050 of 3595 ranked incidents

Largest Web3 incidents by USD amount lost
Rank Project Amount Lost Date Chain Technique Attack Guide Source
2001 MOJO $28K - Rugpull — View →
2002 Web3Memes $28K - Rugpull — View →
2003 QWCF $27K - Rugpull — View →
2004 LocalBitcoins $27K bitcoin Other / Key Leaked via Infrastructure — View →
2005 UN Token $27K - Flash Loan Attack Flash Loan Attacks View →
2006 DARK DEFI $27K ethereum Honeypot — View →
2007 Bondly Finance $26K ethereum Honeypot — —
2008 WealthManagementV2 $26K bsc Private Key Compromised Access Control Attacks —
2009 Zenith Finance $26K ethereum Rugpull — View →
2010 Space Godzilla $26K bsc Flash Loan Attack / Spot Price Manipulation Flash Loan Attacks View →
2011 SCAT $26K - Rugpull — View →
2012 TokenHolder $26K bsc Improper Access Control Access Control Attacks —
2013 OTSea $26K ethereum Reward Logic Flaw — —
2014 Dreams Come True $26K - Rugpull — View →
2015 WinPlay $26K ethereum Rugpull — View →
2016 CredixFinance $26K - Rugpull — View →
2017 Saxon James Musk $26K - Rugpull — View →
2018 TIM3 $25K ethereum Rugpull — —
2019 Horizon Finance $25K binance Rugpull — View →
2020 PDR $25K - Rugpull — View →
2021 EOSDice $25K eos Unknown — —
2022 SafeMoonX $25K - Rugpull — View →
2023 GSS $25K bsc Arithmetic Error — —
2024 MutantNFTs $25K - Other — View →
2025 Verify $25K - Rugpull — —
2026 Drips Network $25K ethereum Arithmetic Error — View →
2027 RUL3R Token $25K ethereum Rugpull — View →
2028 PlantWorld $24K - Flash Loan Attack Flash Loan Attacks View →
2029 NarutoSwap $24K binance Rugpull — View →
2030 DefiBox $24K - Other — View →
2031 Static $24K ethereum Rugpull — —
2032 Fire Token $24K ethereum Other / Spot Price Manipulation Oracle Manipulation & Price Manipulation View →
2033 Symbiosis $24K - Rugpull — View →
2034 Pacific Protocol $24K ethereum Rugpull — View →
2035 loveloverocket $23K - Rugpull — View →
2036 NanoCore $23K ethereum Abandoned — —
2037 Reddio RedSonic $23K ethereum Incorrect Share Accounting — —
2038 Game Swap Exchange $23K ethereum Rugpull — View →
2039 Boost $23K ethereum Rugpull — —
2040 KuCoin $23K - Social Account Takeover Phishing Attacks —
2041 Zap Finance $22K binance Rugpull — View →
2042 Dynamic $22K - Reentrancy Reentrancy View →
2043 DOGETAMA $22K - Rugpull — —
2044 OpenOcean $22K - Other — View →
2045 Set Protocol $22K ethereum Rounding Error — —
2046 Fortunas Finance $22K - Other — View →
2047 SpaceX Copycat $22K - Rugpull — View →
2048 CoinSWOP $21K ethereum Rugpull — View →
2049 Zenterest $21K ethereum Stale Oracle Price Oracle Manipulation & Price Manipulation —
2050 Cool Cats $21K - Rugpull — —

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.