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Weekly · Issue 7 · 2026-09-07 – 2026-09-13

Crypto security incidents · weekly · 2026-W37

From 2026-09-07 to 2026-09-13, 9 crypto security incidents were publicly reported, with about $4.7M lost; the previous week had 9 and $326.1M, a change of -99% in losses. The largest was Nomic (2026-09-09, about $3.1M). By technique, "Bridge & Cross-Chain" accounted for the most losses: 3 incidents, $4.2M. There were no phishing, frontend-hijack or rugpull incidents; the rest happened inside wallets and contracts and call for key management and code audits.

Incidents

9

previous 9

Reported loss

$4.7M

previous $326.1M

Pre-payment check partly applies

0

$0

Largest incidents

DateIncidentTechniqueLoss
2026-09-09NomicBridge & Cross-Chain$3.1M
2026-09-12Chainflip AMMBridge & Cross-Chain$736K
2026-09-10SymbiosisBridge & Cross-Chain$336K
2026-09-07Cozy V2Protocol Logic$163K
2026-09-09Zentra FinanceToken & Share Accounting$140K

By technique

Bridge & Cross-Chain3$4.2M
Protocol Logic1$163K
Token & Share Accounting1$140K
Oracle Manipulation1$78K
Access Control1$43K
Key Compromise2$26K

By chain

Nomic1$3.1M
Tron1$736K
BSC3$440K
Ethereum2$379K
Optimism1$163K
Citrea1$140K

Data: the public DefiLlama incident dataset. This report restates public reports and is not OceanAlt's judgment of any party. To report an error, email business@oceanalt.com.