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

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 $2,654M
  • 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 2201–2250 of 3300 ranked incidents

Largest Web3 incidents by USD amount lost
Rank Project Amount Lost Date Chain Technique Attack Guide Source
2201 Blazar Finance polygon Rugpull View →
2202 Area51 DeFi binance Rugpull View →
2203 Duck Finance polygon Rugpull View →
2204 CookieSwap Layer 2 binance Rugpull View →
2205 PoliEx Swap binance Rugpull View →
2206 KoalaDefi polygon Rugpull View →
2207 TamagochiSwap polygon Rugpull View →
2208 HermitSwap binance Rugpull View →
2209 Carousel Finance polygon Rugpull View →
2210 CatgeSwap binance Rugpull View →
2211 CarolinaReaper Finance binance Rugpull View →
2212 Royalflush Farm polygon Rugpull View →
2213 The Apollo Project binance Rugpull View →
2214 NekoCat binance Rugpull View →
2215 Frog Farm binance Rugpull View →
2216 Hotdog Cart Finance binance Rugpull View →
2217 Hippolygon polygon Rugpull View →
2218 OVNI Finance binance Rugpull View →
2219 LavaSwap binance Rugpull View →
2220 Jester DeFi binance Rugpull View →
2221 Panda Matic polygon Rugpull View →
2222 Helios.Cash polygon Rugpull View →
2223 Astro Bunny Finance polygon Rugpull View →
2224 Polywater polygon Rugpull View →
2225 BEESwap binance Rugpull View →
2226 Night Wolf binance Rugpull View →
2227 PolyGarden polygon Rugpull View →
2228 PolyGorilla polygon Rugpull View →
2229 PolyCloud polygon Rugpull View →
2230 Rainicorn binance Honeypot View →
2231 Cobrafinance.org binance Rugpull View →
2232 Haikyu binance Rugpull View →
2233 Zombies Farm binance Rugpull View →
2234 Astro Yield binance Rugpull View →
2235 Polyvee Finance polygon Rugpull View →
2236 PolyGold polygon Rugpull View →
2237 PolyWeed polygon Rugpull View →
2238 Dino Finance polygon Rugpull View →
2239 PUGDOG INU binance Rugpull View →
2240 Shadowswap Finance fantom Rugpull View →
2241 Glockswap polygon Rugpull View →
2242 Evilswap binance Rugpull View →
2243 DinoSwap.farm binance Rugpull View →
2244 Alienswap binance Rugpull View →
2245 Oilrig Finance binance Rugpull View →
2246 Basset Farm binance Rugpull View →
2247 Chopper Finance binance Rugpull View →
2248 Pumpkin Swap binance Rugpull View →
2249 PolyWhat polygon Rugpull View →
2250 Geckoswap binance 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.