Monitoring

Maestro

LOWEthereum·Arbitrary External Call·#746 all-time
$500K stolenMonday, October 23, 2023 · 1098 days ago

Corpus updated 2026-10-25

What happened

  • Maestro, a defi protocol, lost $500K on October 23, 2023.

  • The 109th largest of the 197 incidents recorded in 2023: under 1% of the $1.63B lost to hacks that year.

  • Arbitrary External Call is behind 30 recorded incidents totalling $37.1M; this is the 16th largest of them.

  • $465K is recorded as returned — 93% of the amount taken.

Cite this record

Monitoring Room, "Maestro hack — $500K stolen", incident record, data: DefiLlama hacks dataset, as of 2026-10-25 08:00 UTC. https://monitoringroom.com/situation/crypto-hack/maestro

Nearby in the record

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10/19/2023$230K
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10/29/2023$228K
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10/18/2023$825K
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10/31/2023$640K
MicDao
10/18/2023$13K
Onyx Protocol
11/1/2023$2.1M
← All incidents

Source: DefiLlama · 1317 recorded incidents · data as of 2026-10-25 08:00 UTC