In some instances, users insert the card and leave it in the reader – leaving them with a single small device for all smart card-related needs. Smart cards are being used to secure identities in many ...

Let's look at the benefits and challenges of contactless payments along with how this method has evolved over the years.

The smart cards hold a computer chip that, when slid through a reader, will download coupon information from the Internet onto the card, which customers can use to save on purchases at Target stores.