A multisignature (multisig) wallet requires multiple private keys to authorize a transaction, rather than just one. For example, a 2-of-3 multisig wallet needs any two out of three designated key holders to sign before funds can be moved. Multisig wallets provide enhanced security for organizations, DAOs, and individuals by preventing a single point of failure. Even if one key is compromised, the attacker cannot access the funds without the additional required signatures.