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Based on Coin's FAQ:

1. Yes, it should be usable with ATMs without issue.

2. You cannot lock your coin with a password, but it will deactivate after it loses contact with a phone after a user-specified amount of time. In theory, I'd assume you can disable Bluetooth on your iPhone and it will effectively "lock" your Coin until it can pair with your device again.




Would be nice if there was a way to physically unlock it. I can imagine my phone dying – preventing me from making any kind of purchase.




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