An attacker analyzes data returned by an RFID chip and uses this
						information to duplicate a RFID signal that responds identically to the
						target chip. In some cases RFID chips are used for building access control,
						employee identification, or as markers on products being delivered along a
						supply chain. Some organizations also embed RFID tags inside computer assets
						to trigger alarms if they are removed from particular rooms, zones, or
						buildings. Similar to Magnetic strip cards, RFID cards are susceptible to
						duplication (cloning) and reuse. RFID (Radio Frequency Identification) are
						passive devices which consist of an integrated circuit for processing RF
						signals and an antenna. RFID devices are passive in that they lack an on
						on-board power source. The majority of RFID chips operate on either the
						13.56 MHz or 135 KHz frequency. The chip is powered when a signal is
						received by the antenna on the chip, powering the chip long enough to send a
						reply messge. An attacker is able to capture and analyze RFID data by either
						stimulating the chip to respond or being proximate to the chip when it sends
						a response to a remote transmitter. This allows the attacker to duplicate
						the signal and conduct attacks such as gaining unauthorized access to a
						building or impersonating a user’s identification.