Weekly · Issue 15 · 2026-11-02 – 2026-11-08
Crypto security incidents · week 45, 2026 (Nov 2 to Nov 8)
This week (Nov 2 to Nov 8), 5 crypto security incidents were publicly reported, with about $40.9M lost: 99% less than last week (13 incidents, $6.37B). The largest was Mercado Bitcoin on Nov 2, about $40.0M, caused by a protocol logic flaw. One was phishing, a fake website or a rugpull (about $0 in total). These happen at the moment of payment, so checking the payee address and the website before paying can stop some of them.
5
$40.9M
$40.0M
Largest incidents
| Date | Incident | Cause | Loss |
|---|---|---|---|
| 2026-11-02 | Mercado Bitcoin | Protocol Logic | $40.0M |
| 2026-11-05 | TENDRIL | Protocol Logic | $550K |
| 2026-11-02 | BitMart | Protocol Logic | $391K |
| 2026-11-05 | Loopscale Lending | Protocol Logic | $0 |
| 2026-11-06 | Keplr Wallet (Web3Auth) | Frontend & Infrastructure | $0 |
By cause
| Incidents | Lost | |
|---|---|---|
| Protocol Logic | 4 | $40.9M |
| Frontend & Infrastructure | 1 | $0 |
By blockchain
| Incidents | Lost | |
|---|---|---|
| BSC | 2 | $40.5M |
| Arbitrum | 2 | $40.4M |
| Bitcoin | 1 | $40.0M |
| Ethereum | 1 | $40.0M |
| Solana | 2 | $40.0M |
| TRON | 1 | $40.0M |