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Hack history / 2019 / Hack or exploit

Synthetix v1+v2

Hack or exploit on Jun 25, 2019 · Oracle Misconfiguration

SOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
undisclosed
dollars at the time
Returned
none listed
as the sources state it
Rank
not ranked
collapses, frauds and later news are not ranked

What happened

An oracle price feed reported Korean Won at 1000x higher than actual rate due to API outage reducing redundancy. A trading bot exploited the misconfiguration to generate over 37M sETH in profits within an hour. All funds were recovered through white-hat negotiation and bug bounty.

Details

Date
Jun 25, 2019
Kind
Hack or exploit
Method
Oracle Misconfiguration
How in
Price, oracle and governance
Target
DeFi protocol
Chains
Ethereum

After the theft

Recovered or seized
yes, amount not stated
“All funds were recovered through white-hat negotiation and bug bounty.” (DefiLlama)

Reported by

Related incidents

Synthetix 2025 · Hack or exploit · undisclosed
Cite this pageSwanBluechip, "Synthetix v1+v2 hack, Jun 25, 2019: undisclosed lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/htaf621b5562/ (data as of 2026-10-31).
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