Above: The old (unopened) reader is on the left; the new reader is on the right, with encryption and a battery. Square has added encryption technology to its Square reader. Competitor VeriFone tried ...

Square credit card readers are in thousands of stores and restaurants, but the company realizes there are industries where its software isn’t appropriate. That’s why today it introduced the Square ...

When a gadget company sells its products for big bucks, it has every reason to refine its designs on an ongoing basis, making them ever more tempting to paying customers. But if the gizmo in question ...

Christine Sharp-Crowe, an artist and owner of downtown shop Made in the Philtower, said credit card payments used to be a pain to accept at craft shows. "You'd use those awkward devices that rubbed on ...