iCLASS offers customers a multiple layer of card-to-reader security. End users receive a high security credential that is exclusive tthe Keyscan access control systems and backward compatible with legacy iCLASS SE readers. iCLASS credentials and readers are -˜factory programmed' tmatch. As a result, only matching cards and readers will work together, further prohibiting other cards and readers from inadvertently functioning within your company's secured areas.