Multi-signature, often abbreviated as multi-sig, refers to a security feature that requires multiple keys to authorize a transaction. Instead of relying on a single private key, a multi-signature wallet requires multiple signatures from different keys to execute any action, such as sending funds.This setup enhances security by distributing control among several parties. For example, in a three-of-five arrangement, any three out of five designated private keys can authorize a transaction. This prevents unauthorized access, as compromising one key alone is not enough.Multi-signature is often used by organizations or groups who need to manage funds collectively, such as in a business partnership or for joint accounts. It adds an extra layer of protection against theft and fraud while also ensuring transparency in financial dealings. Overall, multi-signature wallets provide a robust solution for safeguarding assets by ensuring that no single individual has full control over the funds.