turning to business news, people. those square readers may be trendy and easy to use for all of your purchases, but just how safe are they? what three boston university students just discovered, well, it s going to shock you. that s right. fox business network s cheryl casone is here to tell us more. i have brought no pickup lines, by the way. i got nothing, sorry. i ve got business. these square readers, they re popular like at coffee chains that don t want to spring for having all the mastercard terminals. those square readers are great for retail stores or mom and pop stores. it s cheaper for them. it s better for everybody. it s attached to that portable device so it swipes the credit cards from the customers. restaurants are using them a lot more, i know. and you can see them at apple stores. but it looks like they could also be used to steal your credit card data. turns out hackers can physically disable the encryption on the reader. they make it into a little, like, po