Hack history / 2025 / Hack or exploit
FutureSwap
Hack or exploit on Dec 16, 2025 · Flashloan Governance Attack
IN REVIEWSOURCES DISAGREE ON DATE OR LOSS · 2 SOURCES
Lost
$270K
sources: $270K to $830K
Returned
none listed
as the sources state it
Rank
#1,362
among thefts by dollars lost
What happened
In December 2025, attacker exploited FutureSwap on Arbitrum using flash loans to acquire temporary governance voting power and pass a malicious proposal transferring protocol funds.
In review: sources disagree on the loss.
Details
- Date
- Dec 16, 2025
- Kind
- Hack or exploit
- Method
- Flashloan Governance Attack
- How in
- Price, oracle and governance
- Target
- DeFi protocol
- Chains
- Ethereum, Arbitrum
Reported by
Related incidents
Cite this page
SwanBluechip, "FutureSwap hack, Dec 16, 2025: $270K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht66fe359946/ (data as of 2026-10-31).