Security researchers at the Black Hat Briefings demonstrated a method for turning purloined credit card information into cash, this time using Square, a free credit card reader that promises to turn ...

When cashiers at the Groundswell cafe and restaurant use a little Square credit-card reader to process payments, they sometimes have to wrap the card in a bit of wax paper before swiping it. The tiny ...

The Square Reader has helped lower the barrier to entry for many small retailers keen to take payments on card. Now, though, new research reveals that it’s possible to turn one of the readers into a ...