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Hack history / 2022 / Hack or exploit

OWNLY

Hack or exploit on May 10, 2022 · Withdrawal Logic Flaw

SOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$37K
dollars at the time
Returned
none listed
as the sources state it
Rank
#1,998
among thefts by dollars lost

What happened

OWNLY's unstake function lacked claim status validation, allowing attackers to repeatedly call unstake() and extract 930M OWN tokens without authorization. The staking contract was drained of ~$37K in BNB equivalent before discovery.

Details

Date
May 10, 2022
Kind
Hack or exploit
Method
Withdrawal Logic Flaw
How in
Smart contract bug
Target
DeFi protocol
Chains
BNB Chain

Reported by

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Cite this pageSwanBluechip, "OWNLY hack, May 10, 2022: $37K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht9ce723b087/ (data as of 2026-10-31).
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