Contactless smart card technology is not the same as RFID. Discussions of RF-enabled applications can be confusing, and contactless smart card technology is often incorrectly referred to as RFID. Currently, a wide range of RF technologies are used for a variety of applications, each with different operational parameters, frequencies, read ranges, and security and privacy features. For example, the RFID technologies that are used to track inventory operate over long ranges (e.g., 25 ft.) and have minimal built-in support for security and privacy. Contactless smart cards use RF technology but, by design, operate at short ranges (less than 4 in.) and are very secure. Contactless smart card technology is currently being used for secure identity applications worldwide.