Multisig
A wallet setup that requires several private keys to approve a transaction instead of just one.
Multisig, short for multi-signature, splits control across keys. A common setup is 2-of-3: any two of three keyholders must sign before funds move. No single key — or single stolen laptop — can spend on its own.
Companies use it so no one employee can run off with the treasury. Individuals use it to remove a single point of failure: keep keys in three places, and losing one doesn't lock you out. The trade-off is more setup and more keys to manage.
Related terms
The secret number that proves ownership of crypto and authorizes spending it; whoever holds it controls the funds.
Self-CustodyHolding your own private keys directly, so no exchange or company stands between you and your crypto.
Cold StorageKeeping crypto keys completely offline for long-term safekeeping, out of reach of malware and remote attackers.
WalletA tool that stores the keys controlling your crypto and lets you send, receive, and sign transactions.