[dylanpyle]

As far as I can tell, the BLE radio in Coin is only used for detecting location, and doesn't expose any card details in any form.

[fletchowns → dylanpyle]

Yea but it's still a wireless radio. Who knows what sort of exploit some malicious and clever person could come up with.

[goshx → fletchowns]

IMO, if we worry about that we would never use NFC or any other technology, really. I dare to say that everything is exploitable.

[fletchowns → goshx]

No, we should just always be careful with new technology.

[ggoodale → dylanpyle]

If that were the case, how would the data input into your cell phone get stored on the card? I believe at a minimum Coin uses BLE to transmit card data from your phone to the device.