A Vault is a Bitcoin wallet that needs more than one key to spend. That extra step protects against phishing, device loss, malware, and a single stolen backup. It is meant for cold storage and larger amounts. Overview: Multisig Vault General.
Multisig Vault
The most secure Bitcoin technology. Multisig is like a vault, where multiple keys are needed to spend Bitcoin.
Recommended for cold storage and large amounts.
Highlights
Easy Creation
Total flexibility to choose the number of keys and address types.
Powerful Import
Easily import or recover any setup. Compatible with most wallets.
Backup Keys
Safely backup your signing keys simultaneously with all pubkeys.
Backup Watch-only
Easily backup and spread your coordination setup (pubkeys) for better protection.
Air Gapped
Support for PSBTs and QR codes for maximum security.
Edit Setup 🔥
Easily change your setup to allow key rotation or fast signing for emergency situations.
The only thing between having a bitcoin and losing a bitcoin is one mistake. Multisig provides you with additional protection making it exceptionally challenging to "overcome".
Why use a Vault
Provides better protection or safety on...
Phishing attacks
On and Offline Thievery
Malware infection
Supply chain attacks
Key loss
Device loss
Device malfunction
Multisig Demo
In this demo of the Multisig Vaults you can see 2 BlueWallet apps signing transactions offline and airgapped.
Frequently asked questions
Quick answers about creating, backing up, and using a Multisig Vault
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What is a Multisig Vault?
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What setup does BlueWallet create by default?
A 2-of-3 Vault. To change the quorum or address type, turn on Advanced Mode in Settings, then create the Vault. Walkthrough: How to create a Vault.
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Should all keys live on the same phone?
No. Keys on one device have the same security as a regular Bitcoin wallet. Use several devices (and locations if that fits your setup). Compatible with other BlueWallet apps and PSBT-compatible wallets and hardware wallets.
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What is the difference between the Vault backup and the watch-only backup?
The Vault backup includes signing material and is a secret. The watch-only (coordination) backup is the map of public keys needed to reconstruct the setup if you lose one seed. Store both; the coordination backup can be copied more widely than the keys themselves. See Multisig Vault General.
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Can I sign offline or with a hardware wallet?
Yes. Vaults support PSBTs and QR codes for air-gapped signing. You can also edit the setup later for key rotation or faster emergency signing.
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When should I use a Vault instead of a regular Bitcoin wallet?
Use a normal Bitcoin wallet for spending and smaller balances. Use a Vault when a single lost phone, seed, or compromised device would be unacceptable, or when several people share custody.
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