Multisig

Multisig means that multiple people have to approve a transaction. This way, no one person can send crypto from a shared crypto wallet alone.

What is multisig?

With a regular wallet, one private key is enough to send crypto. A private key is a secret digital key that gives access to the wallet.

A multisig wallet uses multiple keys. You agree in advance on how many approvals are needed. With a 2-of-3 multisig, there are three keys, but two approvals are enough to carry out a transaction.

This can improve security. If someone steals one key, they can’t simply move the crypto. But multisig is more complicated, and a transaction can take longer. It can also be difficult to access the wallet if key holders don’t respond or lose their keys.

An example of multisig

Three people manage crypto together for a shared project. They use a 2-of-3 multisig wallet.

One person sets up a payment. A second person checks and approves it. That makes two approvals, so the transaction can go through. This means one person can’t send funds on their own.

Why is multisig important in crypto?

Businesses, groups, and shared projects often use multisig to manage crypto together. It spreads control across multiple people and reduces the risk that one stolen key is enough to lose the crypto.

You may come across multisig in reports about crypto wallet security or managing shared funds. It doesn’t mean crypto can never be lost: the settings need to be chosen carefully, and all key holders need to handle their access responsibly.