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 301-350 of 3836 ranked incidents

Largest Web3 incidents by USD amount lost
Rank Project Amount Lost Date Chain Technique Attack Guide Source
301 flash.sx / vaults.sx $13.0M eos Reentrancy Reentrancy
302 Massive Phishing $12.9M - Phishing Phishing Attacks View →
303 StablR $12.8M - Access Control Access Control Attacks View →
304 pNetwork $12.7M - Other View →
305 Compounder Finance $12.5M ethereum Drained Contracts / Rugpull / Admin Drain View →
306 Ionic $12.3M - Other View →
307 CoinDash $12.2M - Other View →
308 Cork V1 $12.0M ethereum Access control bypass via hook / Other / Improper Access Control Access Control Attacks View →
309 Polter Finance $12.0M fantom Flashloan Price Oracle Attack / Oracle Issue / Spot Price Manipulation Flash Loan Attacks View →
310 Ronin $12.0M - Access Control Access Control Attacks View →
311 Ronin Bridge $12.0M ethereum MEV bot manipulation exploit / Uninitialized Proxy Access Control Attacks View →
312 Fortress Trust $12.0M bitcoin, ethereum Key Leaked via Infrastructure
313 Defrost $12.0M avalanche Oracle Manipulation / Private Key Compromised Access Control Attacks View →
314 Defrost Finance $12.0M - Rugpull View →
315 Triple-A $11.8M arbitrum, ethereum, tron Access Control / Hot Wallet Key Compromised Access Control Attacks View →
316 EXMO $11.7M multiple Access Control / Hot Wallet Key Compromised Access Control Attacks View →
317 PrismaLST $11.6M ethereum Flashloan Trove Manipulation / Missing Input Validation Flash Loan Attacks View →
318 Verus $11.6M - Other View →
319 Somesing $11.6M ethereum Unbacked Mint
320 Yearn Finance $11.5M ethereum Flashloan Misconfiguration Exploit / Flash Loan Attack / Oracle Misconfiguration Flash Loan Attacks View →
321 Verus-Ethereum Bridge $11.5M verus Forged Proof
322 BitoPro $11.5M ethereum, polygon, solana, tron Key Leaked via Infrastructure
323 BitoPro BitoGroup $11.5M - Access Control Access Control Attacks View →
324 Garden $11.4M arbitrum, base, ethereum, solana Private Key Compromised / Key Leaked via Infrastructure Access Control Attacks View →
325 Venus Protocol $11.2M bsc Stale Oracle Price Oracle Manipulation & Price Manipulation
326 Garden Finance $11.0M - Other View →
327 Saddle Finance $11.0M ethereum Flashloan Swap Logic Exploit / Other / Swap Logic Flaw Flash Loan Attacks View →
328 bEarn Fi $11.0M binance Flash Loan Attack Flash Loan Attacks View →
329 ValueDefi $11.0M bsc, ethereum Access Control Exploit / Other / Math Mistake Exploit / Other / Arithmetic Error / Improper Access Control Access Control Attacks View →
330 Yearn Finance $11.0M ethereum Flashloan Price Oracle Attack / Flash Loan Attack / Spot Price Manipulation Flash Loan Attacks View →
331 Blend Pools V2 $11.0M stellar Price Oracle Manipulation / Spot Price Manipulation Oracle Manipulation & Price Manipulation View →
332 Blend Protocol $10.9M - Oracle Issue Oracle Manipulation & Price Manipulation View →
333 THORChain $10.7M - - View →
334 THORChain $10.7M base, bitcoin, bsc, ethereum Other / Bridge Logic Flaw View →
335 Kraken $10.5M bitcoin Access Control / Improper Access Control Access Control Attacks View →
336 Poly Network $10.2M - Access Control Access Control Attacks View →
337 Wanchain $10.0M cardano Other / Signature Verification Flaw View →
338 Syscoin Bridge $10.0M syscoin Forged Proof
339 DogWifTools $10.0M solana Private Key Compromised (Malware) / Key Stored Publicly Access Control Attacks View →
340 Gifto $10.0M - Rugpull View →
341 Dego Finance $10.0M bsc, cronos, ethereum Private Key Compromised (Unknown Method) / Deployer Key Compromised Access Control Attacks View →
342 Arbix Finance $10.0M bsc Drained Contracts / Rugpull / Admin Drain View →
343 SharkTron $10.0M - Rugpull View →
344 GateHub $10.0M ripple Access Control / Private Key Compromised Access Control Attacks View →
345 Youbit $10.0M bitcoin Other / Hot Wallet Key Compromised View →
346 Cryptsy $9.9M bitcoin, litecoin Access Control / Private Key Compromised Access Control Attacks View →
347 Pizza $9.9M - Other View →
348 LiFi Finance $9.7M linea, metis, zksync era Router Exploit via Infinite Approvals / Token Approval Abuse Access Control Attacks View →
349 Jeffrey Zirlin $9.7M - Access Control Access Control Attacks View →
350 Resupply $9.6M ethereum Price Oracle Manipulation / Other / Donation Attack Oracle Manipulation & Price Manipulation 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

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