What it is
Mobile CVMCardholder Verification MethodHow the cardholder is verified — for example offline PIN, online PIN, signature, or no CVM required.View in glossary → Results reports the outcome of on-device (consumer device) cardholder verification for Amex ExpressPay — whether CDCVMConsumer Device Cardholder Verification MethodCardholder verification done on the consumer’s own device — e.g. phone biometrics or passcode — instead of at the terminal.View in glossary → was required, performed, and succeeded. It is the Amex analogue of the CDCVMConsumer Device Cardholder Verification MethodCardholder verification done on the consumer’s own device — e.g. phone biometrics or passcode — instead of at the terminal.View in glossary → signalling other schemes carry in the CTQCard Transaction QualifiersEMV tag 9F6C — a 2-byte bitmap the card returns to the terminal, declaring the card’s contactless requirements (e.g. online PIN, signature).View in glossary → (9F6C), and lets the terminal skip a second CVMCardholder Verification MethodHow the cardholder is verified — for example offline PIN, online PIN, signature, or no CVM required.View in glossary → when the phone already verified the cardholder.
Where it appears
Returned by the card / wallet during Amex contactless processing.
Specification reference
Defined in: EMVCo Contactless Book C-4 (Kernel 4 / American Express)
Meaning by contactless kernel