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Hack history / 2022 / Hack or exploit

One Ring Finance

Hack or exploit on Mar 21, 2022 · Improper Access Control

ATTACK TX CONFIRMED ON CHAININ REVIEWSOURCES AGREE ON DATE AND LOSS · 4 SOURCES
Lost
$1.5M
dollars at the time
Returned
none listed
as the sources state it
Rank
#809
among thefts by dollars lost

What happened

One Ring Finance was exploited via flash loan price manipulation when the protocol's LP token price calculation lacked time-weighted averaging. The attacker pre-positioned assets through Celer Network's cBridge and deployed a contract to drain liquidity.

In review: possible duplicate within one source.

Details

Date
Mar 21, 2022
Kind
Hack or exploit
Method
Improper Access Control
How in
Smart contract bug
Target
DeFi protocol
Chains
Ethereum, Fantom

Reported by

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Cite this pageSwanBluechip, "One Ring Finance hack, Mar 21, 2022: $1.5M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/htd3ac5e32a7/ (data as of 2026-10-31).
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