[hugocbp]

You just go into the app and click "Create card". Within seconds it will show you the number, expiration date and security code. And you can name it.

Then you use it like a normal card, so on the retailers it will be just like you use a physical card.

For example, I wouldn't have one card per purchase for Amazon, but one virtual card for Amazon that I would switch every few purchaces or something like that.

I haven't had any issues with this and have been doing it for a few years now.