Hack history / 2024 / Hack or exploit
MainnetSettler
Hack or exploit on Nov 20, 2024 · Token Approval Abuse
ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$66K
dollars at the time
Returned
none listed
as the sources state it
Rank
#1,848
among thefts by dollars lost
What happened
On November 20, 2024, the MainnetSettler contract was exploited through an approval vulnerability that allowed arbitrary calls. Users with Hold token approvals to MainnetSettler had their tokens drained when attackers executed transferFrom calls, resulting in approximately $66K in losses.
Details
- Date
- Nov 20, 2024
- Kind
- Hack or exploit
- Method
- Token Approval Abuse
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- Ethereum
Reported by
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Spectral Labs 2024 · Hack or exploit · $250K
Seneca 2024 · Hack or exploit · $6.4M
Spectral Labs 2024 · Hack or exploit · $250K
Cite this page
SwanBluechip, "MainnetSettler hack, Nov 20, 2024: $66K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht7c95f2c7aa/ (data as of 2026-10-31).