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

  • 3299

    Incidents Tracked

  • 74

    Chains Affected

  • 80

    $100M+ Incidents

Top 10 Biggest Hacks

Jump to full leaderboard
  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 $2,657M
  • 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 51–100 of 3299 ranked incidents

Largest Web3 incidents by USD amount lost
Rank Project Amount Lost Date Chain Technique Attack Guide Source
51 Bitmart $196.0M bsc, ethereum Private Key Compromised (Unknown Method) Access Control Attacks View →
52 Nomad $190.0M ethereum Trusted Root Exploit / Other View →
53 Beanstalk $181.0M ethereum Flashloan Governance Attack / Flash Loan Attack Flash Loans Attacks View →
54 BTC-e $181.0M - Rugpull View →
55 Wintermute $160.0M ethereum Private Key Compromised (Brute Force) / Access Control Access Control Attacks View →
56 Token.Store $160.0M - Rugpull View →
57 Parity $155.0M - Other View →
58 Parity Multisig $150.0M ethereum Contract not initialized Access Control Attacks View →
59 Compound V2 $147.0M ethereum Math Mistake Exploit Arithmetic Overflows Underflows View →
60 QuadrigaCX $147.0M - Access Control Access Control Attacks View →
61 Control Finance $147.0M - Rugpull View →
62 BitGrail $146.0M - Other View →
63 Vulcan Forged $140.0M ethereum, polygon Private Key Compromised (Unknown Method) / Access Control Access Control Attacks View →
64 Boy X Highspeed $139.9M - Access Control Access Control Attacks View →
65 Cream Finance $130.0M - Flash Loan Attack Flash Loans Attacks View →
66 CREAM Lending $130.0M ethereum Flashloan Price Oracle Attack Flash Loans Attacks View →
67 Balancer V2 $128.0M arbitrum, base, ethereum, optimism, polygon, sonic Composable Stable Pools Exploit / Access Control Access Control Attacks View →
68 Poloniex $126.0M bitcoin, ethereum, tron Private Key Compromised (Unknown Method) / Access Control Access Control Attacks View →
69 Multichain $126.0M bsc, fantom, moonriver Private Key Compromised (Unknown Method) Access Control Attacks View →
70 Ormeus Coin $124.0M - Other View →
71 Badger DAO $120.3M ethereum Cloudflare Key Compromised / Other View →
72 BonqDAO $120.0M - Oracle Issue Oracle Manipulation & Price Manipulation View →
73 Mango Markets V3 $116.0M solana Price Oracle Attack / Other Oracle Manipulation & Price Manipulation View →
74 Atomic Wallet $115.0M avalanche, bitcoin, bsc, ethereum, polkadot, tron Private Key Compromised (Unknown Method) / Access Control Access Control Attacks View →
75 Maiar DEX $113.0M - Other View →
76 Chris Larsen $112.5M - Access Control Access Control Attacks View →
77 Bitget $100.0M - Market-Making Bot Exploit View →
78 EmpiresX $100.0M - Other View →
79 Horizon by Harmony $100.0M - Access Control Access Control Attacks View →
80 Harmony Bridge $100.0M bsc, ethereum Private Key Compromised (Unknown Method) Access Control Attacks View →
81 Liquid $97.0M - Access Control Access Control Attacks View →
82 Stream Finance $93.0M - Other View →
83 Phishing $91.0M - Phishing Phishing Attacks View →
84 Mirror Protocol $90.0M - Other View →
85 Mirror $90.0M terra Outdated Oracle Exploit / Duplicate Call Exploit Oracle Manipulation & Price Manipulation View →
86 Compound Labs $89.0M ethereum Oracle Issue Oracle Manipulation & Price Manipulation View →
87 Heco Bridge $86.6M ethereum Private Key Compromised (Unknown Method) Access Control Attacks View →
88 HECO $86.3M - Access Control Access Control Attacks View →
89 Phemex $85.0M arbitrum, avalanche, base, bitcoin, bsc, ethereum, optimism, polygon, solana, sui, tron, xrp, zksync era Private Key Compromised (Unknown Method) / Other Access Control Attacks View →
90 Nobitex $82.0M arbitrum, avalanche, bitcoin, bsc, ethereum, polygon, tron Hot wallet hack / Access Control Access Control Attacks View →
91 Orbit Bridge $81.7M ethereum Signature Exploit View →
92 Orbit Chain $81.6M - Access Control Access Control Attacks View →
93 Rari Capital $80.0M arbitrum, ethereum Flashloan Reentrancy Attack Flash Loans Attacks View →
94 Qubit $80.0M bsc Transfer Logic Exploit View →
95 Qubit Finance $80.0M - Other View →
96 Rari Fuse $79.7M - Reentrancy Reentrancy View →
97 AscenDEX $77.7M bsc, ethereum, polygon Private Key Compromised / Access Control Access Control Attacks View →
98 Venus $77.0M - Oracle Issue Oracle Manipulation & Price Manipulation View →
99 Fireblocks $75.0M - Access Control Access Control Attacks View →
100 Compound Labs $71.1M - Other 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.