On: Contactless cards fail to recognise foreign currency

[mey]

It could simply deny transaction requests in foreign currency.

[Guvante → mey]

Why? The only way it is going to post is if the bank accepts it. Since the card can't know the conversion rate "allow anything" is a perfectly reasonable action.

[TheLoneWolfling → mey]

Or, you know, it could simply not do financial transactions over wireless.

[tormeh → mey]

That doesn't sound like something the EU would be glad to hear...

[mey → tormeh]

What's worse, additional steps to validate the transaction via swipe or unlimited purchase side by changing currency?

It's an insecure design, I'm suggesting a simply approach that doesn't require the card to be more intelligent about international financial markets and exchange rates in real time.

[dwild → tormeh]

Set a limit for each currency and if it's not on that list, deny it.

[Guvante → dwild]

What about currency's that fluctuate? The rate can change a lot in the several years a card is in consumer hands.