Smartrac has announced its new Circus Tamper Loop tags specifically designed for tamper detection and authentication via NFC-enabled smartphones.   Targeting a wide array of applications for packaged goods in consumer and industrial markets, Circus Tamper Loop opens the door to new, NFC-based consumer experience solutions featuring higher security and additional consumer engagement at the point of sale and post-sale.   Circus Tamper Loop tags are based on the Smartrac Circus product family. ...