A bank-to-bank transfer, also known as a WIRE transfer, is an electronic transfer of funds from one bank account to another. It is a secure and reliable way to move money between accounts, often used for large sums of money or when time is of the essence. The process is initiated by the sender, who provides the recipient's banking information to their own bank. The bank then sends the funds to the recipient's bank, where they are deposited into the recipient's account.