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 151–200 of 3299 ranked incidents

Largest Web3 incidents by USD amount lost
Rank Project Amount Lost Date Chain Technique Attack Guide Source
151 Digging for Gold $39.0M - - View →
152 Alpha Finance $37.5M ethereum Flashloan Pool Shares Exploit / Flash Loan Attack Flash Loans Attacks View →
153 CoinsPaid $37.3M - Social Engineering / Other Phishing Attacks View →
154 Humanity Protocol $36.4M - - View →
155 Cream Finance $36.2M - Other View →
156 Upbit $36.0M solana Private Key Compromised / Other Access Control Attacks View →
157 IRA Financial $36.0M - Other View →
158 Vee Finance $36.0M avalanche Flashloan Price Oracle Attack / Other Flash Loans Attacks View →
159 Scream $35.0M - Oracle Issue Oracle Manipulation & Price Manipulation View →
160 Crypto.com $34.4M bitcoin, ethereum Private Key Compromised (Unknown Method) / Access Control Access Control Attacks View →
161 Parity $34.0M - Other View →
162 Harvest Finance $33.8M ethereum Flashloan Price Oracle Attack / Flash Loan Attack Flash Loans Attacks View →
163 Ackerman Ponzi $33.0M - Other View →
164 PlayDapp $32.4M - Access Control Access Control Attacks View →
165 DEFI100 $32.0M - Rugpull View →
166 Meerkat Finance $32.0M binance, bsc Drained Contracts / Rugpull View →
167 Bitpoint $32.0M - Access Control Access Control Attacks View →
168 Fintoch $31.7M - Rugpull View →
169 MonoX $31.4M ethereum, polygon Swap Function Exploit / Other View →
170 Humanity Protocol $31.0M - Access Control Access Control Attacks View →
171 Tether $31.0M - Other View →
172 Spartan Protocol $30.5M binance Flash Loan Attack Flash Loans Attacks View →
173 Spartan $30.5M bsc Flashloan Pool Shares Exploit Flash Loans Attacks View →
174 SnowdogDAO $30.0M - Rugpull View →
175 Bithumb $30.0M - Access Control Access Control Attacks View →
176 Herencia Artifex $29.6M - Other View →
177 Transit Swap $28.9M - Other View →
178 Deribit Exchange $28.3M - Access Control Access Control Attacks View →
179 BigONE $28.0M - Access Control Access Control Attacks View →
180 Deribit $28.0M - Private Key Compromised (Unknown Method) Access Control Attacks View →
181 Aave V3 $27.8M ethereum CAPO Oracle Misconfiguration Oracle Manipulation & Price Manipulation View →
182 Wintermute $27.6M - Other View →
183 Wintermute $27.6M optimism Cross Chain Multisig Deployment Exploit View →
184 Paid Network $27.4M ethereum Infinite Mint and Dump / Other View →
185 Bitmarket $27.1M - Rugpull View →
186 Binance User $27.1M - Access Control Access Control Attacks View →
187 Penpie $27.0M ethereum Reentrancy Reentrancy View →
188 StableMagnet $27.0M binance, bsc Drained Contracts and User Wallets / Rugpull View →
189 Truebit $26.5M ethereum Bonding Curve Exploit / Other View →
190 Huobi $26.4M ethereum Private Key Compromised (Unknown Method) Access Control Attacks View →
191 Fixed Float $26.1M - Access Control Access Control Attacks View →
192 MEV Boost Exploit $26.1M - Other View →
193 FixedFloat $26.1M bitcoin, ethereum Private Key Compromised Access Control Attacks View →
194 Kronos Research $26.0M ethereum API Key unauthorized access View →
195 Coinbin $26.0M - Access Control Access Control Attacks View →
196 ThalaSwap $25.5M aptos Drained Liquidity Pool View →
197 Lendf.me $25.2M ethereum Reentrancy / Other Reentrancy View →
198 Indodax $25.2M ethereum, optimism, polygon Access Control Exploit / Other Access Control Attacks View →
199 Resolv Labs $25.0M - - View →
200 Resolv $25.0M ethereum Private Key Compromised / 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

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