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Hack history / 2022 / Hack or exploit

Fantasm Finance

Hack or exploit on Mar 9, 2022 · Missing Input Validation

SOURCES AGREE ON DATE AND LOSS · 4 SOURCES
Lost
$2.6M
dollars at the time
Returned
none listed
as the sources state it
Rank
#627
among thefts by dollars lost

What happened

Fantasm Finance's mint function validated msg.value instead of the actual FTM amount transferred, allowing attackers to mint XFTM without collateral. The attacker drained the reserve of 1,008.5 ETH (~$2.62M), swapped it through Tornado Cash, and XFTM fell ~98%.

Details

Date
Mar 9, 2022
Kind
Hack or exploit
Method
Missing Input Validation
How in
Smart contract bug
Target
DeFi protocol
Chains
Fantom

Reported by

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Cite this pageSwanBluechip, "Fantasm Finance hack, Mar 9, 2022: $2.6M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht8cc5df0fd7/ (data as of 2026-10-31).
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