# Vault Contracts

The market neutral yield farm vaults use a modified version of Yearn V2 vault contracts. The Yearn V2 vaults have been thoroughly battle-tested and are considered some of the safest contracts in the DeFi space.

YieldFi vaults do have modifications to enable allow-listing user addresses. This means the vault governance and management accounts will have permission to allow-list user addresses, enabling only allow-listed users to deposit into the vault. If users have funds in the vault, only they will be permitted to withdraw.

&#x20;
