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.

  • $104B+

    Total Value Lost

  • 3836

    Incidents Tracked

  • 124

    Chains Affected

  • 88

    $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 $9,731M
  • bitcoin $5,447M
  • bsc $2,997M
  • solana $1,694M
  • polygon $1,539M

Top Techniques by Losses

  • Other $61,131M
  • Rugpull $15,643M
  • Private Key Compromised (Brute Force) / Weak Key Generation $3,500M
  • Access Control $3,077M
  • Safe Multisig wallet Phishing Exploit / Access Control / Signer Phishing $1,635M

Full Leaderboard

Showing 151-200 of 3836 ranked incidents

Largest Web3 incidents by USD amount lost
Rank Project Amount Lost Date Chain Technique Attack Guide Source
151 CoinDCX $44.2M - Access Control / Hot Wallet Key Compromised Access Control Attacks View →
152 GMX $42.0M - Other View →
153 GMX V1 Perps $42.0M arbitrum Re-entrancy Exploit / Reentrancy Reentrancy View →
154 Binance $41.7M bitcoin Access Control / Hot Wallet Key Compromised Access Control Attacks View →
155 SwissBorg $41.5M solana Third-party API compromise / Other / API Key Compromised View →
156 Stake.com $41.4M bsc, ethereum, polygon Private Key Compromised (Unknown Method) / Other / Hot Wallet Key Compromised Access Control Attacks View →
157 Bo Shen Wallet Hack $41.1M - Access Control Access Control Attacks View →
158 Step Finance $40.0M solana Private Key Compromised / Access Control Access Control Attacks View →
159 Grim Finance $40.0M fantom Flashloan Reentrancy Attack / Reentrancy Flash Loan Attacks View →
160 Coinrail $40.0M ethereum Access Control / Improper Access Control Access Control Attacks View →
161 Digging for Gold $39.0M - - View →
162 Alpha Finance $37.5M ethereum Flashloan Pool Shares Exploit / Flash Loan Attack / Borrow Logic Flaw Flash Loan Attacks View →
163 CoinsPaid $37.3M - Social Engineering / Other / Impersonation Scam Phishing Attacks View →
164 Humanity Protocol $36.4M - - View →
165 Cream Finance $36.2M - Other View →
166 Upbit $36.0M solana Private Key Compromised / Other / Malware Access Control Attacks View →
167 IRA Financial / Gemini $36.0M ethereum API Key Compromised
168 IRA Financial $36.0M - Other View →
169 Vee Finance $36.0M avalanche Flashloan Price Oracle Attack / Other / Spot Price Manipulation Flash Loan Attacks View →
170 Scream $35.0M - Oracle Issue Oracle Manipulation & Price Manipulation View →
171 Crypto.com $34.4M bitcoin, ethereum Private Key Compromised (Unknown Method) / Access Control / Session Key Compromised Access Control Attacks View →
172 Parity $34.0M - Other View →
173 Harvest Finance $33.8M ethereum Flashloan Price Oracle Attack / Flash Loan Attack / Spot Price Manipulation Flash Loan Attacks View →
174 Ackerman Ponzi $33.0M - Other View →
175 Humanity $32.0M bsc, ethereum Private Key Compromised Access Control Attacks
176 DEFI100 $32.0M - Rugpull View →
177 Meerkat Finance $32.0M binance, bsc Drained Contracts / Rugpull / Admin Drain View →
178 Bitpoint $32.0M bitcoin, ethereum, litecoin, xrp Access Control / Key Leaked via Infrastructure Access Control Attacks View →
179 Fintoch $31.7M - Rugpull View →
180 MonoX $31.4M ethereum, polygon Swap Function Exploit / Other / Swap Logic Flaw View →
181 Humanity Protocol $31.0M - Access Control Access Control Attacks View →
182 Bithumb $31.0M ethereum Access Control / Key Leaked via Infrastructure Access Control Attacks View →
183 Tether $31.0M bitcoin Other / Private Key Compromised Access Control Attacks View →
184 Spartan Protocol $30.5M binance Flash Loan Attack Flash Loan Attacks View →
185 Spartan $30.5M bsc Flashloan Pool Shares Exploit / Incorrect Share Accounting Flash Loan Attacks View →
186 SnowdogDAO $30.0M - Rugpull View →
187 Parity $30.0M ethereum Uninitialized Proxy Access Control Attacks
188 Herencia Artifex $29.6M - Other View →
189 Transit Swap $28.9M bsc, ethereum Transfer Logic Exploit / Missing Input Validation View →
190 Transit Swap $28.9M - Other View →
191 Deribit Exchange $28.3M - Access Control Access Control Attacks View →
192 BigONE $28.0M bitcoin, bsc, ethereum, solana, tron Access Control / Supply Chain Attack Access Control Attacks View →
193 Deribit $28.0M - Private Key Compromised (Unknown Method) / Hot Wallet Key Compromised Access Control Attacks View →
194 Aave V3 $27.8M ethereum CAPO Oracle Misconfiguration / Oracle Misconfiguration Oracle Manipulation & Price Manipulation View →
195 Wintermute $27.6M - Other View →
196 Wintermute $27.6M optimism Cross Chain Multisig Deployment Exploit / Improper Access Control Access Control Attacks View →
197 Paid Network $27.4M ethereum Infinite Mint and Dump / Other / Infinite Mint View →
198 Bitmarket $27.1M - Rugpull View →
199 Binance User $27.1M - Access Control Access Control Attacks View →
200 Penpie $27.0M ethereum Reentrancy Reentrancy 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

$104B+ lost to preventable vulnerabilities. Master real exploit patterns and defense techniques with hands-on Web3 security training.