FREE TOOL · INTERACTIVE CHECKLIST
Multisig Cold Storage Setup Checklist
Multisig removes the single point of failure a lone seed phrase creates. Work through this in order — the sequence matters as much as the steps.
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Why multisig, not a single seed
A single-signature wallet has one point of failure: whoever has the seed phrase has the funds, whether that's you on a good day or a thief on a bad one. Multisig requires signatures from multiple independent keys — typically 2-of-3 — so no single compromised device, coerced disclosure, or lost backup is enough on its own to move funds or lock you out permanently.
The most common real-world setup: three hardware wallets, ideally from different manufacturers, stored in three separate physical locations, with any two required to sign a transaction. Services like Casa and Unchained coordinate this for you and hold a recovery key as a backstop; Sparrow Wallet lets technically comfortable users build the same setup themselves for free.
Frequently asked questions
What is multisig?
A wallet setup requiring signatures from multiple keys — commonly 2-of-3 — to move funds, so a single lost or compromised device or seed phrase can't move the money by itself.
What quorum should I use — 2-of-3 or 3-of-5?
2-of-3 is the standard for individuals: it survives losing any one device while still requiring collusion or compromise of two to steal funds. 3-of-5 suits larger holdings or shared custody among multiple people who each want a key.
Do I need different hardware wallet brands for multisig?
It's recommended, not required. Using different manufacturers for each key protects against a single brand's supply-chain compromise or firmware vulnerability affecting all your keys at once.
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SCAM WARNING
No legitimate service will ever ask for your seed phrase or private keys, in multisig or otherwise. Anyone who does is stealing from you.