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Hack history / 2021 / Hack or exploit

Levyathan

Hack or exploit on Jul 28, 2021 · Key Stored Publicly

ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 4 SOURCES
Lost
$1.5M
dollars at the time
Returned
none listed
as the sources state it
Rank
#802
among thefts by dollars lost

What happened

Levyathan developers stored private keys with minting capability on GitHub. The attacker used these to pass a timelock transaction on July 28 and execute an ownership transfer on July 30, minting 100 quintillion LEV tokens. The weak timelock controls lacked multisig authorization.

Details

Date
Jul 28, 2021
Kind
Hack or exploit
Method
Key Stored Publicly
How in
Keys, accounts and infrastructure
Target
DeFi protocol
Chains
BNB Chain
Audit (rekt.news)
unaudited

Reported by

Cite this pageSwanBluechip, "Levyathan hack, Jul 28, 2021: $1.5M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/htf02553362b/ (data as of 2026-10-31).
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