Visor Finance
Last changed 2026-10-10 · Score recalculated — Rescored under Scoring v2, the published formula (avoid.net/scoring): 18 → 48. Problems weighed by who is responsible: incidents the subject suffered −20, concerns that are not fraud −6, problems around the subject, caused by others −1.1; the penalty for incidents it suffered is capped at 20. Version history →
Why this score
| Every page starts at | 65 |
| Concerns that are not fraud | -6 |
| Incidents it suffered (e.g. hacks) | -20 |
| Problems around it, caused by others | -1.1 |
| Sum | 38 |
- The penalty for incidents it suffered is capped at 20 points.
Score: 48/100 (kept between 0 and 100)
How scoring works →Summary
Visor Finance was an Ethereum-based DeFi protocol offering active liquidity management for Uniswap v3 concentrated liquidity positions via smart-contract vaults called Hypervisors. The protocol suffered three separate security incidents in 2021 — an admin-key compromise in June ($500K), a price-manipulation attack in November (alleged $773K), and a critical reentrancy exploit in December that drained approximately $8.2M in VISR tokens from the vVISR staking contract. Following the December exploit, Visor merged with co-funded research arm Gamma Strategies in January 2022 and rebranded entirely, migrating token holders to the GAMMA token.
Connected Entities
8 entities · 60 linked investigations- Gamma Strategies→mentioned with→Uniswap(70%)
- Gamma Strategies→mentioned with→Ethereum(60%)
- Gamma Strategies→mentioned with→Arbitrum(70%)
- Optimism→mentioned with→Arbitrum(65%)
- Optimism→mentioned with→Ethereum(80%)
- Uniswap→mentioned with→Ethereum(80%)
- Uniswap→mentioned with→Optimism(60%)
- Chainlink→mentioned with→Ethereum(65%)
- Gamma Strategies→mentioned with→Visor Finance(80%)
- Polygon→mentioned with→Ethereum(70%)
- + 10 more
Connected Through
8 shared actors · 629 investigationsDistinct actors this investigation shares with others — holders, traders, and named parties. Shared infrastructure (exchanges, pools) is excluded.
- □Ethereumorganization
- ⌂Uniswapprotocol
- □Arbitrumorganization
- □Polygonorganization
Timeline(9 events)
May 2021
Visor Finance funds the creation of Gamma, an active LP research organization, with an initial $500,000.
Visor Finance Medium19 June 2021
Admin key compromise results in $500K stolen from unpositioned Hypervisor deposits. Visor covers losses from treasury.
Yahoo Finance / Visor Finance post-mortem12 July 2021
CertiK delivers Hypervisor audit report; no critical or major findings reported across 10 total findings.
CertiK Security Leaderboard25 November 2021
Price manipulation attack against OHM-ETH Hypervisor using Uniswap v3 spot price dependency. Visor characterizes it as arbitrage; independent estimates put losses at $773K. Treasury covers losses.
Quadriga Initiative21 December 2021
Critical reentrancy exploit drains vVISR staking contract (RewardsHypervisor) of 8,812,958 VISR (~$8.2M). Attacker uses double-enter on deposit() to mint 195M vVISR certificates then redeems for underlying VISR. Funds laundered via Tornado Cash. VISR token price collapses over 97%.
Rekt News / BEOSIN Analysis23 December 2021
Visor Finance announces merger with Gamma Strategies, token migration to GAMMA using pre-exploit snapshot, and post-rebrand security commitments including Quantstamp and ConsenSys Diligence audits.
Gamma Strategies Medium2022
Visor Finance fully merges into Gamma Strategies. GAMMA token distributed to all VISR/vVISR/tVISR holders. Visor web properties transferred to Gamma brand.
Gamma Strategies MediumDecision Log
- slot 455362770 · hash nMfXspQGVbzYc4b4e8uEpF2zEEt4MvSP5kebvNL899H
- slot 423161287 · hash 3cEbNnZsdLovHitbsqpuHKpWwDGHuCcmcxqmrgs5rJdX
This investigation is cryptographically anchored to the Solana blockchain (2 decisions). 10 of 14 cited source URLs have an Internet Archive snapshot.
model: claude-sonnet-4-5
generated: 5/30/2026, 1:00:32 PM
last updated: 10/10/2026, 6:42:55 PM
3 viewsavoid.net — verified advice for a post-truth world