Multi-factor authentication (MFA) is a security protocol that requires users to verify their identity using two or more factors — such as a password plus a code sent to a mobile device. It’s commonly used to secure logins, prevent account takeovers, and add protection to sensitive workflows. In payments, MFA is often implemented through 3D Secure (3DS2).
Implementing MFA protects your internal systems from unauthorized access and improves customer trust during login and checkout. AltoPay supports MFA and integrates it into payment processing workflows for enhanced identity validation.

For more than a decade, Jessica Velasco has been a thought leader in the payments industry. She aims to provide readers with valuable, easy-to-understand resources.