A transaction alert is a notification about activity on an account, such as a payment, transfer, cash withdrawal, or change to account details. Banks may deliver alerts through an app, text message, or email, allowing account holders to review activity soon after it occurs.
Alerts can help users spot unauthorized payments, mistakes, or unusual account movement quickly, but they do not prevent transactions or prove that activity is fraudulent. In cyber security, they are most useful when configured for relevant events and sent through a secure, monitored channel. A business should ensure alerts reach the people responsible for reviewing payments, and respond to suspicious activity by checking the account through its official app or website rather than links in an unexpected message.