Hack history / 2021 / Hack or exploit
Visor Finance
Hack or exploit on Nov 28, 2021 · Spot Price Manipulation
SOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$976K
dollars at the time
Returned
none listed
as the sources state it
Rank
#951
among thefts by dollars lost
What happened
Attacker exploited Visor's OHM-ETH 1% LP management contract by manipulating the Uniswap V3 pool price through large swaps. The steep liquidity gradient in the OHM-ETH pair made it susceptible to price manipulation via asset dump-and-buyback. User funds were secured and losses were covered by Visor's treasury.
Details
- Date
- Nov 28, 2021
- Kind
- Hack or exploit
- Method
- Spot Price Manipulation
- How in
- Price, oracle and governance
- Target
- DeFi protocol
- Chains
- Ethereum
After the theft
- Recovered or seized
- yes, amount not stated
“Funds in the targeted pool were recovered by Visor just hours after the attack.” (SlowMist Hacked)
Reported by
Related incidents
Visor Finance 2021 · Hack or exploit · $8.2M
Visor Finance 2021 · Hack or exploit · $505K
CREAM Lending 2021 · Hack or exploit · $130M
Venus Protocol 2021 · Hack or exploit · $100M
Bunny 2021 · Hack or exploit · $45M
Visor Finance 2021 · Hack or exploit · $505K
CREAM Lending 2021 · Hack or exploit · $130M
Venus Protocol 2021 · Hack or exploit · $100M
Bunny 2021 · Hack or exploit · $45M
Cite this page
SwanBluechip, "Visor Finance hack, Nov 28, 2021: $976K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht6d0ebedcf7/ (data as of 2026-10-31).