All Cybersource codes
CYBERSOURCE · REASON CODE
Cybersource428
The strong customer authentication (SCA) exemption request was declined; SCA is required.
Cybersource saysSoft decline
428The strong customer authentication (SCA) exemption request was declined; SCA is required.
What it means
Authentication required
The issuer will only approve this payment after 3-D Secure authentication.
What to do
Send the payment again with 3DS. In regulated markets, make sure exemptions fall back to a challenge.
Worth retryingWho can fix it: You, the merchant
Yuno response codeTHREE_D_SECURE_REQUIRED
Reference only. Codes and descriptions come from each provider's public documentation. The Yuno response code is a reference mapping and does not guarantee how a specific transaction is processed.