Monitoring
Dashboard/Crypto Hacks/Gamma
MEDIUMEthereum·Access Control Exploit·#165 all-time

Gamma

$8.2M stolenTuesday, December 21, 2021 · 1679 days ago

Other recorded incidents at Gamma

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

Gamma — 2024
Arbitrum$4.5M

Situation Summary

12/21/2021 — EXPLOIT DETECTED

$8.2M drained from Gamma on Ethereum.

TECHNIQUE: ACCESS CONTROL EXPLOIT

Social Reactions

@ZachXBT coverage

On-chain investigator · Often first to report

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Community discussion

Live search for “Gammahack” on 𝕏

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Data: DefiLlama · Monitoring Room

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