Abstract: A pin-pad and pin-pad security method are provided. The pin-pad includes: a keypad module including a plurality of buttons; a main board comprising an encryption circuit configured to encrypt a key signal input from the keypad module; a first flexible circuit board to protect an upper portion of the main board; a second flexible circuit board to surround a side surface of the main board; a double cover to block access to a circuit in the main board; and an information blocking circuit unit configured to erase information stored therein to block leakage of the information when disconnection or a short-circuit of an electric circuit is detected from at least one of the main board and the first and second flexible circuit boards. When the pin-pad is disassembled or cut, information stored in an internal memory is erased to block leakage of the information remaining in the internal memory.

Abstract: Provided is a secure payment device. The secure payment device includes: a payment terminal on which a pin-pad including a keypad module is mounted and which is capable of communicating with a mobile terminal via a short-range communication; a mobile terminal accommodation unit coupled to one surface of the payment terminal to detachably couple the mobile terminal to the payment terminal; and a mounting unit screw-fastened to one surface of the payment terminal and including at least one fixing protrusion configured to slide into and be fixed at a fixing groove formed on one side surface of the mobile terminal accommodation unit, wherein the payment terminal includes at least one flexible protrusion configured to slide into and be fixed at a fixing groove formed on the other side surface of the mobile terminal accommodation unit.

Abstract: A pin-pad and pin-pad security method are provided. The pin-pad includes: a keypad module including a plurality of buttons; a main board comprising an encryption circuit configured to encrypt a key signal input from the keypad module; a first flexible circuit board to protect an upper portion of the main board; a second flexible circuit board to surround a side surface of the main board; a double cover to block access to a circuit in the main board; and an information blocking circuit unit configured to erase information stored therein to block leakage of the information when disconnection or a short-circuit of an electric circuit is detected from at least one of the main board and the first and second flexible circuit boards. When the pin-pad is disassembled or cut, information stored in an internal memory is erased to block leakage of the information remaining in the internal memory.