RFID stands for Radio Frequency Identification, which utilizes radio waves to identify items. At a minimum, the RFID system contains a tag, a reader, and an antenna. There are active and passive RFID tags. Active RFID tags contain their own power source, giving them the ability to broadcast with a read range of up to 100 meters. Passive RFID tags do not have their own power source. Instead, they are powered by the electromagnetic energy transmitted from the RFID reader.
NFC stands for near field communications, which is a subset of RFID but with high-frequency. Both NFC/RFID operate at 13.56 MHz. NFC is also designed to run as an NFC reader and also NFC tag, which is the unique feature of NFC devices to communicate with peers. In this section, we will explore one of the devices that comes in handy during a physical penetration testing/social engineering...
