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.

  • $101B+

    Total Value Lost

  • 3300

    Incidents Tracked

  • 74

    Chains Affected

  • 80

    $100M+ Incidents

Top 10 Biggest Hacks

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  1. 🥈

    Mantra

    $5.50B

  2. #4

    LuBian

    $3.50B

    bitcoin

  3. #8

    Thodex

    $2.00B

  4. #10

    Finiko

    $1.50B

Where the Largest Losses Concentrate

Top Chains by Losses

  • ethereum $8,051M
  • bitcoin $4,415M
  • bsc $2,654M
  • solana $1,605M
  • polygon $1,512M

Top Techniques by Losses

  • Other $61,553M
  • Rugpull $15,684M
  • Access Control $4,030M
  • Private Key Compromised (Brute Force) $3,500M
  • Safe Multisig wallet Phishing Exploit / Access Control $1,635M

Full Leaderboard

Showing 1901–1950 of 3300 ranked incidents

Largest Web3 incidents by USD amount lost
Rank Project Amount Lost Date Chain Technique Attack Guide Source
1901 Ethereum Hive $16K - Other View →
1902 Foxi.finance $16K ethereum Rugpull View →
1903 ArcadeEarn $15K - Rugpull
1904 Betcoin $15K - Access Control Access Control Attacks View →
1905 WINR $15K - Other View →
1906 Raichu Thunderstone $15K - Rugpull View →
1907 Bored Ape Europe Club $14K - Rugpull
1908 Slicer Finance $14K ethereum Rugpull View →
1909 ROBOT SHIB $14K - Rugpull View →
1910 OKX NFT Aggregator $14K bsc Access Control Exploit Access Control Attacks View →
1911 50BTC $14K - Other View →
1912 Numbers Protocol $14K - Other View →
1913 DeriTrade $13K - Rugpull View →
1914 Alexa $13K - Other View →
1915 Twerk Finance $13K ethereum Rugpull View →
1916 Hypechill fund $13K ethereum Rugpull View →
1917 Tranquility Defi $13K ethereum Rugpull View →
1918 ChaddyFinance $13K binance Rugpull View →
1919 Whale Loans $12K - Other View →
1920 BBX Token $12K - Other View →
1921 XSD Token $12K - Flash Loan Attack Flash Loans Attacks View →
1922 Bitcoin Syndicate $12K - Access Control Access Control Attacks View →
1923 RFbtc $12K ethereum Rugpull View →
1924 GMT $12K - Rugpull
1925 Fractal Defi $12K ethereum Rugpull View →
1926 D4ppdao Token $12K ethereum Rugpull View →
1927 Convex Finance $12K - Other View →
1928 JohnLennonC0IN $11K - Rugpull View →
1929 OceanLifeToken $11K - Flash Loan Attack Flash Loans Attacks View →
1930 Tenderize V2 $11K ethereum Proxy Upgrade Skim View →
1931 PulldogSwap $11K binance Honeypot View →
1932 SAV3R $10K ethereum Rugpull View →
1933 Bing Swap $10K binance Rugpull View →
1934 The Onigiri Neko $10K - Rugpull View →
1935 Fake DAI Token $10K - Other View →
1936 Gooniez Gang $10K - Other View →
1937 SuperMarioBros $10K ethereum Rugpull View →
1938 Focus $10K ethereum Rugpull View →
1939 Mantle $10K ethereum Rugpull View →
1940 Vadia Finance $9K ethereum Rugpull View →
1941 Reflation $9K ethereum Rugpull
1942 Health $9K - Other View →
1943 Mocha Set Dollar $9K ethereum Rugpull View →
1944 Goose Finance $8K bsc Share Accounting Flaw View →
1945 Brother finance $8K ethereum Honeypot View →
1946 Sloth Inu $8K - Rugpull View →
1947 Relay3rV1 $8K ethereum Rugpull View →
1948 Mt. Gox $8K - Other View →
1949 CYBER SOLIDITY $8K ethereum Rugpull View →
1950 Metropolis.finance $8K 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

$101B+ lost to preventable vulnerabilities. Master real exploit patterns and defense techniques with hands-on Web3 security training.