In the last year banks have created new types Credit & Debit cards that comes with a built in RFID chip that holds your payments card information. With the help of this chip you can "blip" your card when paying in stores instead of putting in your code or signing.
The major problem is that thieves have come up with a program that can read these type of RFID/NFC signals from a distance. These types of thieves can just walk past you on the streets with device in their bag or in their phone and access your cards information from up to couple of meters away. But here is where SkimShield comes in.