What kind of security tool frequently uses RFID technology to allow staff access to restricted locations or resources?

A smartcard is a type of badge or card that grants access to various resources such as buildings, parking lots, and computers. It provides information on your identity and access privileges. Each area or computer has a reader or card scanner where you can insert your card. The wireless, no-contact technology that powers these cards and the reader that goes with them is called radio frequency identification (RFID). A security token, which might be hardware or software, is something you possess and is used to verify your identity. An area between two doors known as an access control vestibule frequently has security cameras. The second door grants access to a secure area. A small device called a key fob is used for two-factor identification. It may generate a code or contain software that must be read in order to obtain access.