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Hack history / 2022 / Hack or exploit

Cashio

Hack or exploit on Mar 23, 2022 · Missing Input Validation

SOURCES AGREE ON DATE AND LOSS · 4 SOURCES
Lost
$52M
dollars at the time
Returned
$14.1M
27% of the loss, as a source states it
Rank
#100
among thefts by dollars lost

What happened

Cashio's infinite-mint bug arose from two missing account-validation checks in the collateral deposit path, letting attackers use fake tokens as Saber LP collateral. ~2 billion CASH were minted and swapped for ~$52.8M in USDC, USDT and UST; CASH crashed to $0.00005.

Details

Date
Mar 23, 2022
Kind
Hack or exploit
Method
Missing Input Validation
How in
Smart contract bug
Target
DeFi protocol
Chains
Solana
Audit (rekt.news)
unaudited

After the theft

Recovered or frozen
$14.1M
“$52.0M taken, $37.9M after recovery or freezing” (Web3 Is Going Great)

Reported by

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Cite this pageSwanBluechip, "Cashio hack, Mar 23, 2022: $52M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht6dc7c20001/ (data as of 2026-10-31).
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