Notional V2

What happened

• Notional V2, a defi protocol, lost $1.7M on September 4, 2026.

• The 86th largest of the 306 incidents recorded in 2026 so far: under 1% of the $2.34B lost to hacks that year.

• Arithmetic Error is behind 35 recorded incidents totalling $561.0M; this is the 13th largest of them.

Cite this record

Monitoring Room, "Notional V2 hack — $1.7M stolen", incident record, data: DefiLlama hacks dataset, as of 2026-10-23 03:00 UTC. https://monitoringroom.com/situation/crypto-hack/notional-v2

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