Volo Vault Review 2026: Sui Yield Vaults and the April Exploit

Volo is an earn hub on Sui. It started with vSUI, a liquid staking token for SUI, and now offers vaults for other major Sui assets, including BTCFi-related tokens, with one-click deposits.

DefiLlama lists Volo under Risk Curators on Sui only, with about $546K in TVL, two listed audits and the token NAVX. The listing dates from October 2023. The site footer credits NAVI, and public reporting mentions a partnership between NAVI Protocol and Volo.

The most important recent event is the security incident. Public reporting from April 2026 report that Volo froze its vaults after about $3.5 million was drained, with a post-mortem planned. A later recovery update says the remaining funds the attacker acquired were recovered and that net loss was down to roughly $60K. Those details come from search snippets, so read the official post-mortem.

Volo has two main products on Sui. In liquid staking, you stake SUI and receive vSUI. The staked SUI earns validator rewards, which are reflected in the token, and you can hold or use vSUI while the underlying SUI stays staked.

Volo Vaults work differently. You choose a vault for a supported asset, deposit it, and the vault runs a curated strategy intended to earn yield. The homepage describes three steps: choose a vault, stake your assets, and earn automatically as rewards compound. Because strategies are chosen and managed by the team and its partners, DefiLlama classes the project as a risk curator.

A veModel handles governance. Users lock the Volo token for voting power, share in protocol revenue and vote on where assets are allocated. The homepage marks the governance forum and proposal pages as coming soon.

Fee details are not published publicly available for this review. The homepage shows APR figures for vaults and staking, but the page text captured here displays placeholder zeros, so no usable rate is established.

Before depositing, check each vault's page in the app and the project documentation for management, performance and withdrawal fees, plus the normal Sui network gas costs.

Volo's homepage lists audit reports from OtterSec, Movebit and Hacken, all dated July 2023, for voloSUI liquid staking. DefiLlama lists two audits. These predate the vault products and the 2026 incident, and the project does not show audits for each current vault.

Public reporting from April 2026 report a drain of about $3.5 million from Volo vaults, a freeze and a planned post-mortem. A later recovery update says remaining funds were recovered and net loss fell to roughly $60K. Vault deposits carry smart-contract risk, strategy risk and reliance on the team's curation, so only deposit what you can afford to lose. Custody is non-custodial in the sense that you use your own wallet, but vaults can be paused. Check the official post-mortem and the current status of each vault before depositing.

Volo Vault is for Sui users comfortable with DeFi risk who want hands-off yield on SUI, vSUI or BTC-related tokens. It is a poor fit for anyone who wants a long, audited track record on the vault products or cannot tolerate temporary pauses.