MEDIUMEthereum, BSC, Fantom·Private Key Compromised (Bad ECDSA Implementation)·#173 all-time

Multichain

$7.9M stolenSaturday, July 10, 2021 · 1843 days ago

Other recorded incidents at Multichain

DefiLlama records 2 separate incidents under this name. Each has its own page.

Situation Summary

7/10/2021 — EXPLOIT DETECTED

$7.9M drained from Multichain on Ethereum, BSC, Fantom.

TECHNIQUE: PRIVATE KEY COMPROMISED (BAD ECDSA IMPLEMENTATION)

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Data: DefiLlama · Monitoring Room

Source: DefiLlama · 600 recorded incidents · data as of 2026-07-27 02:04 UTC