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If you name the transit authority doing this, it'd be possible to look at what the iPhone/Android phone is actually doing. One possibility is the information be
by zamnos 3y ago
If you name the transit authority doing this, it'd be possible to look at what the iPhone/Android phone is actually doing. One possibility is the information being shared when using the NFC isn't your CPAN or DPAN at all, but is a 3rd identifier with which they deanonymize you.
- rswail 3y agoIf you use an EMV card in transit, then the Visa/MC rules say that the same card must be used to pay for the fare. Transit providers are not allowed to use the EMV card purely as "identification". I answered elsewhere on the thread about how the transit provider is able to use the EMV as an identifier after it has been used for payment, with a one way hash sent to the transit provider.
- _rs 3y agoI believe OMNY is one system which operates as OP is describing