Thanks for the alert! Too bad it's happening here in paradise 
It's rampant in South Florida and it seems to have moved up here because too many people have caught on down there. Chances are that the stolen cards are coming from "skimmers" when you use your card at an ATM or gas pump. I do the following to protect myself:
If they are getting on to an unlocked wifi in Publix, then they are getting the cards from the Publix computers/registers and not directly from you so there really isn't anything you can do about it except call your bank's fraud department (this scenario was a big true story in South Florida).
Can computer hackers get your credit card info from your computer... yes if you store it on there which you should not do anyways or by a virus which is whole other discussion. But personal one on one attacks are rare because the risk vs reward isn't great enough. If hackers have the know how to steal cards, then they do it in mass batches over computer networks and rob databases. This requires a lot of skill. On the flip side, skimmers are a relatively low tech/high reward device which does not require a lot of skill.
I hope this info helps someone!

It's rampant in South Florida and it seems to have moved up here because too many people have caught on down there. Chances are that the stolen cards are coming from "skimmers" when you use your card at an ATM or gas pump. I do the following to protect myself:
- Use those devices in well trafficked areas. Skimmers are harder to install under the watchful eyes of a store clerk or at a busy intersection.
- If something looks weird on the ATM like a new sign or additional mirror, go somewhere else because a camera may be present to steal your PIN.
- If buttons are hard to push, there may be a keypad overlay stealing your PIN instead of a hidden cameras
- If the credit card slot is a manual slider instead of one that sucks in the whole card (although these can be skimmed too), look at the receiver part to see if it looks out of place, too bulky, or loose if you can wiggle it. If so then go somewhere else. There could be a skimmer installed over the bank's card reader which stores your card info on it's way in to the bank's reader... which is how they get the name "skimmer"
If they are getting on to an unlocked wifi in Publix, then they are getting the cards from the Publix computers/registers and not directly from you so there really isn't anything you can do about it except call your bank's fraud department (this scenario was a big true story in South Florida).
Can computer hackers get your credit card info from your computer... yes if you store it on there which you should not do anyways or by a virus which is whole other discussion. But personal one on one attacks are rare because the risk vs reward isn't great enough. If hackers have the know how to steal cards, then they do it in mass batches over computer networks and rob databases. This requires a lot of skill. On the flip side, skimmers are a relatively low tech/high reward device which does not require a lot of skill.
I hope this info helps someone!
