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Hack history / 2023 / Hack or exploit

Hundred Finance

Hack or exploit on Apr 15, 2023 · Donation Attack

ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 5 SOURCES
Lost
$7.2M
sources: $7M to $7.4M
Returned
none listed
as the sources state it
Rank
#380
among thefts by dollars lost

What happened

On April 15, 2023, Hundred Finance was drained of $7.4M on Optimism via a flashloan-funded donation to an empty WBTC pool, exploiting rounding errors in exchange rate calculation.

Details

Date
Apr 15, 2023
Kind
Hack or exploit
Method
Donation Attack
How in
Smart contract bug
Target
DeFi protocol
Chains
Optimism, Ethereum
Audit (rekt.news)
WhiteHatDAO

Reported by

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Cite this pageSwanBluechip, "Hundred Finance hack, Apr 15, 2023: $7.2M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht181a4bb7d0/ (data as of 2026-10-31).
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