privacy.com lets you create cards per-vendor or one-time-use for online and such, or set monthly, yearly, etc limits on a card. You can pause, stop, delete them at any time. If you are the type to use your phone to pay (I have never done that) they have an app that lets you use a one-time-card there too. I have already had more than one card "popped" while using the service and most of them were used only one time at one location but I was sent an alert that someone attempted to use it. I have no idea how they would have gotten the details but it has saved me a lot of time dealing with getting new cards and re-doing all of my bills and such. Check them out if you are interested in something like this. They have been around for a while.