To combat supply chain counterfeiting, which can cost companies billions of dollars annually, researchers have invented a cryptographic ID tag that's small enough to fit on virtually any product and ...

A cryptographic tag uses terahertz waves to authenticate items by recognizing the unique pattern of microscopic metal particles that are mixed into the glue that sticks the tag to the item's surface.

Sensors and automatic identification have already transformed supply chains. RFID tags and scanners, barcodes, QR codes, and handheld or fixed position scanners and imagers generate real-time data ...

Radio frequency identification (RFID) is a generic term that is used to describe a system that transmits the identity (in the form of a unique serial number) of an object or person wirelessly, using ...

After passing through the tag and striking the object’s surface, terahertz waves are reflected, or backscattered, to a receiver for authentication. A few years ago, MIT researchers invented a ...