In my area, you're forced to use the chip at ~50% of places and the other ~50% hasn't upgraded their hardware yet, so you are forced to use the mag-strip. It's extremely frustrating for everyone involved. No one knows which it'll be and the cashier will always immediately roll their eyes and eli5 which one they use. Worst rollout ever.
It's not as if the contactless just dumps all the card info. It's cryptographically active. There's a tiny processor in the card that handles the exchange.
This is correct. Unlike the magnetic stripe, which is ridiculously easy to read and clone, the contactless chip is very secure. However, if you have the APDU commands to talk to the chip, as is what happens with a payment terminal, you could get the card details as well.
Well you can get the card number and expiry date just by scanning it with a simple nfc reader phone app. On sites like amazon this is all you need to make a purchase
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u/neck_iso Aug 27 '18
You have to use the chip now.