3DS / 3-D Secure
An authentication protocol (3DS2) that adds a step (biometric, OTP, app push) to a card transaction and shifts fraud liability from merchant to issuer.
3DS / 3-D Secure in practice
3DS / 3-D Secure is a core concept for modern finance teams. FlyExpense is built to make it operationally simple, with the controls, audit trails, and automation needed for production use at scale.