Hack history / 2025 / Hack or exploit
Alkimiya
Hack or exploit on Mar 28, 2025 · Arithmetic Error
ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$96K
dollars at the time
Returned
none listed
as the sources state it
Rank
#1,741
among thefts by dollars lost
What happened
Alkimiya's SilicaPools contract unsafely downcast shares from uint256 to uint128 in the collateralizedMint function. An attacker used a flash loan to manipulate the truncated shares value, causing the contract to believe it had issued fewer shares than it actually had and allowing redemption of more collateral than deposited.
Details
- Date
- Mar 28, 2025
- Kind
- Hack or exploit
- Method
- Arithmetic Error
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- Ethereum
Reported by
Related incidents
Cite this page
SwanBluechip, "Alkimiya hack, Mar 28, 2025: $96K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht624620a5e4/ (data as of 2026-10-31).