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Hack history / 2023 / Hack or exploit

DEUS Finance

Hack or exploit on May 5, 2023 · Arithmetic Error

SOURCES AGREE ON DATE AND LOSS · 3 SOURCES
Lost
$6.5M
sources: $6.5M to $7M
Returned
$5.5M
85% of the loss, as a source states it
Rank
#400
among thefts by dollars lost

What happened

DEUS Finance lost $6.5M across Arbitrum, BSC, and Ethereum when an attacker exploited a parameter ordering error in the DEI stablecoin's burnFrom function, reversing approval relationships in the allowances mapping.

Details

Date
May 5, 2023
Kind
Hack or exploit
Method
Arithmetic Error
How in
Smart contract bug
Target
DeFi protocol
Chains
Arbitrum, BNB Chain, Ethereum
Audit (rekt.news)
unaudited

After the theft

Recovered or frozen
$5.5M
“$7.0M taken, $1.5M after recovery or freezing” (Web3 Is Going Great)

Reported by

Related incidents

DEUS Finance 2022 · Hack or exploit · $13.4M
DEUS Finance 2022 · Hack or exploit · $3M
DEUS Finance 2021 · Hack or exploit · $3M
HOPE Lend 2023 · Hack or exploit · $825K
Poolz Network 2023 · Hack or exploit · $390K
Cite this pageSwanBluechip, "DEUS Finance hack, May 5, 2023: $6.5M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht82ae13b988/ (data as of 2026-10-31).
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