# Vaults

Source URL: https://help.blockstream.com/education/glossary/vaults
Updated: 2026-05-26T17:15:11.000Z
Letter: V

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Vaults are a way to improve the security of Bitcoin self-custody by adding additional spending restrictions. Today, vaults can be possible with the addition of new covenant [opcodes](https://support.dxp-staging.blockstream.com/education/glossary/opcode).

A vault usually has several key features, including a proactive delayed withdrawal. This feature requires a predetermined waiting period before funds can be spent after a withdrawal request. It gives the vault owner time to respond in case of unauthorized attempts. The owner can then use a recovery mechanism to cancel or redirect the withdrawal if suspicious activity is detected, such as transferring the funds to a different address for an extra layer of protection.

Navigation: Blockstream Help Center > Education > Glossary > Vaults