What is RFID blocking?

RFID is an acronym for Radio Frequency Identification. It works based on NFC (Near Field Communication) method. As the name indicates, NFC uses close proximity magnetic field to establish communication in between two devices. Usually there is one fixed device (such as credit card scanner, or door scanner you see at the stores which sets an alarm when an unpaid item is detected) and one mobile product with an embedded RFID chip (such as a credit card, a book, clothes, etc.). An embedded RFID chip in a product has a wire-coil attached to it, which is used to harvest the power from the magnetic field of the fixed scanner to power itself and also act as an antenna to communicate with the scanner. The distance of communication is determined by the power of the scanner and the size of the antennas. It can range from a few millimeters to a few meters. Its simplicity and only requiring close proximity to work, makes this technology almost perfect fit for use in credit and debit cards. The risk is that while your credit and debit cards are in your pocket or in your purse, someone with a disguised scanner can approach to you and scan your card info without noticed. By placing your credit and debit cards in a RFID blocking wallet such as TheClassy, you can prevent that happening. TheClassy is made of thick enough aluminum walls that blocks the magnetic field of the strongest scanner's in the market reaching to your cards, hence keeping your credit and debit cards safe.