All terms
A wallet that needs several signatures before anything moves.
A multisig requires m of n keys to approve a transaction, for example 2 of 3 or 3 of 5. No single key can move funds alone.
It removes the single point of failure and is standard for treasuries, teams and anyone protecting a significant amount.
Safe is the most widely used multisig on Ethereum and secures many billions of dollars.
That multisig means more keys and therefore more risk. It means no single key is enough, so a stolen device or a compromised laptop is not a loss. The real risk is losing enough of the keys to fall under the threshold, which is a planning problem rather than a security one.
Common questions
Is multisig worth it for one person?
What happens if one signer disappears?
Where this comes up on the site
The guides that actually use this word, rather than a list of everything we have written.
Where to go next
More security terms
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