Hack history / Monthly reports / 2023-05
Crypto hacks and thefts, May 2023
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
$62.6M
67 thefts
vs the month before
−60%
−60% ($157.3M)
vs a year earlier
−68%
−68% ($193.3M)
Largest thefts
Traders lose more than $15 million to phishing website impersonating crypto exchange HitBTC 15 · Scam$15MJimbos Protocol 28 · Spot Price Manipulation$7.5MDEUS Finance 05 · Arithmetic Error$6.5MDEI 05 · Contract Vulnerability$6.3MPhishing-as-a-service company "Inferno Drainer" steals assets nominally worth $5.9 million in three months 19 · Scam$5.9MXIRTAM 03 · Rug Pull$3.2MSwaprum 19 · Backdoor Contract$3MTornado Cash 20 · Malicious Proposal$2.2MPatricia 26 · Database Breach$2Mpcash 01 · Unknown$2M
How attackers got in
Phishing and scams 3$20.9M
Smart contract bug 21$20M
Price, oracle and governance 9$10.2M
Insiders: rug pulls, frauds, collapses 14$8.3M
Keys, accounts and infrastructure 7$2.4M
Other 11$790K
Bridge and cross-chain 2$0
By chain
Ethereum 32$47.5M
Arbitrum 6$26.6M
BNB Chain 18$17.6M
Bitcoin 1$15M
Polygon 4$6M
not stated 15$2.2M
EOS 1$2M
By target
not stated 48$34.8M
DeFi protocol 15$23.6M
DAO 1$2.2M
Centralized exchange 1$2M
Bridge 1$0
Wallet 1$0
Collapses and frauds, counted apart
5 cases, $187.3M.
Cite this page
SwanBluechip, "Crypto hacks and thefts, May 2023", Crypto hack history, https://swan-hack-tracker.pages.dev/history/m/2023-05/ (data as of 2026-11-01).