Contactless (13.56 MHz) Magstripe Slimline card with MIFARE and Magstripe
A RFID device contains a module that emits a unique identifier when presented to a RFID reader. RFID devices come in many different form factors and generally support two different frequencies, 125 kHz and 13.56 MHz. The majority of older implementations in the United States use 125 kHz technology while newer implementations use 13.56 MHz. 13.56 MHz technology is generally considered more secure due to mutual authentication between the device and reader and more complex cryptography. RFID based authentication is considered less secure than contact smart cards or biometrics, but more secure than other forms of authentication. 2FA ONE manages the lifecycle of both 125 kHz and 13.56 MHz devices and the selection of PINs by users.