I have had cards skimmed and then used: my credit card was being declined every time I used the magnetic strip, but it worked fine when I used the chip, so I assumed that the strip had been deactivated.
I found out that my magnetic strip contained information from a completely different credit card!
Does anybody have any idea how this could have happened? I traced my steps back, and I only used it getting gas at the pump, which I don't do anymore, and once at a flea market from a vendor who used an Ipad with a device on it.
I called Capital One's fraud department, and they said it's possible for a device to not only record your information but it could actually add information to a magnetic strip; unfortunately, they no longer keep the information on magnetic-strip fraud because they don't use them anymore.