A multi-signature wallet is a type of cryptocurrency wallet that requires multiple signatures or approvals from different individuals in order to authorize a transaction. In a multi-signature wallet, more than one private key is required to initiate a transaction, which adds an extra layer of security and helps to prevent unauthorized access or theft.
For example, a 2-of-3 multi-signature wallet might require two out of three authorized individuals to sign off on a transaction before it can be executed. This could include the owner of the wallet, a trusted friend or family member, and a third-party escrow service. Each authorized individual would have their own private key, and all three private keys would be required to complete a transaction.
Multi-signature wallets are often used by businesses, investment funds, or other organizations that require multiple levels of approval for financial transactions. They can also be useful for individual investors who want to store their cryptocurrency assets in a highly secure manner. While multi-signature wallets can be more complex and difficult to set up than other types of wallets, they provide an added layer of protection against theft, fraud, or other types of security breaches.