A multisig wallet, short for multi-signature wallet, requires more than one key to approve a transaction. A common setup is two-of-three, meaning any two approved keys can move funds.
Why multisig is useful
Multisig reduces the risk of one stolen key draining an entire wallet. It is often used by companies, DAOs, families, and long-term holders who want shared control instead of a single point of failure.
What to watch for
Multisig adds process and responsibility. If signers lose keys, ignore recovery planning, or approve transactions without checking them, the setup can still fail.
In crypto, multisig is one practical way to make wallet security more like a system and less like one password protecting everything.