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Weekly · Issue 8 · 2026-09-14 – 2026-09-20

Crypto security incidents · weekly · 2026-W38

From 2026-09-14 to 2026-09-20, 8 crypto security incidents were publicly reported, with about $6.2M lost; the previous week had 9 and $4.7M, a change of +32% in losses. The largest was Nostra Money Market (2026-09-17, about $3.5M). By technique, "Oracle Manipulation" accounted for the most losses: 2 incidents, $4.1M. 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

8

previous 9

Reported loss

$6.2M

previous $4.7M

Pre-payment check partly applies

0

$0

Largest incidents

DateIncidentTechniqueLoss
2026-09-17Nostra Money MarketOracle Manipulation$3.5M
2026-09-19Fetch.aiKey Compromise$1.5M
2026-09-16FlamincomeOracle Manipulation$595K
2026-09-19NuNetKey Compromise$463K
2026-09-16NimiqInput Validation$50K

By technique

Oracle Manipulation2$4.1M
Key Compromise2$2.0M
Input Validation1$50K
Access Control2$50K
Protocol Logic1$0

By chain

Starknet1$3.5M
Ethereum4$2.6M
Polygon1$50K
BSC1$47K
MultiversX1$0

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.