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Hack history / 2022 / Hack or exploit

Equalizer Exchange

Hack or exploit on Jun 7, 2022 · Withdrawal Logic Flaw

SOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$50K
dollars at the time
Returned
none listed
as the sources state it
Rank
#1,932
among thefts by dollars lost

What happened

On June 7, 2022, Equalizer's vault contracts across four chains were exploited via a flawed calculation in getRatioForOneEToken(). The attacker used flash loans to manipulate vault balances and withdraw more assets than entitled. All losses were covered by Equalizer, with no impact to users.

Details

Date
Jun 7, 2022
Kind
Hack or exploit
Method
Withdrawal Logic Flaw
How in
Smart contract bug
Target
DeFi protocol
Chains
Ethereum, BNB Chain, Polygon, Optimism

After the theft

Recovered or seized
yes, amount not stated
“According to officials, funds on Ethereum and BSC have been recovered, but funds on Optimism and Polygon remain unaccounted for.” (SlowMist Hacked)

Reported by

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Cite this pageSwanBluechip, "Equalizer Exchange hack, Jun 7, 2022: $50K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht8581073fae/ (data as of 2026-10-31).
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