Hack history / Monthly reports / 2021-02
Crypto hacks and thefts, February 2021
Thefts are hacks, exploits, phishing, scams and rug pulls, in dollars at the time. A single source for $500M or more waits for a second source before it counts.
Taken
$65.9M
15 thefts
vs the month before
25×
25× ($2.6M)
vs a year earlier
+34%
+34% ($49.1M)
Largest thefts
Alpha Finance 13 · Borrow Logic Flaw$37.5MFurucombo 27 · Delegatecall Hijack$14MYearn Finance 04 · Spot Price Manipulation$11MBT Finance 09 · Spot Price Manipulation$1.5MGrowth DeFi 09 · Missing Input Validation$1.4MMulti Financial 01 · Rug Pull$257KYeld.finance 27 · Flash loan attack$160KCryptopia 01 · Hot Wallet Key Compromised$45KPrimitive Finance 22 · Contract VulnerabilityundisclosedF2Pool 19 · DDoS Attackundisclosed
How attackers got in
Smart contract bug 5$52.9M
Price, oracle and governance 3$12.7M
Insiders: rug pulls, frauds, collapses 1$257K
Keys, accounts and infrastructure 2$45K
Other 4$0
By chain
Ethereum 8$65.6M
BNB Chain 2$37.8M
Multiple 1$45K
not stated 5$0
By target
DeFi protocol 5$65.4M
not stated 8$417K
Centralized exchange 2$45K
Collapses and frauds, counted apart
1 cases, $850K.
Cite this page
SwanBluechip, "Crypto hacks and thefts, February 2021", Crypto hack history, https://swan-hack-tracker.pages.dev/history/m/2021-02/ (data as of 2026-11-01).