As the largest manufacturer of contactless access control readers and cards for the security industry, HID has shipped over 150 million credentials to customers worldwide. HID pioneered the development of radio frequency identification (RFID) technology for physical access control. Proximity and iCLASS technologies can be housed on the same credential and combined with other technologies such as magnetic stripe, barcode, or contact smart chip modules. This provides users the ability to leverage their investment in existing systems while seamlessly upgrading to new technologies and adding new applications. As interest in IT secure authentication and other smart chip applications increases, HID's credential remains the platform of choice to carry multiple applications. HID multi-technology credentials can be used throughout organizations to leverage the investment in existing systems, while providing for enhanced functionality in other areas.