PIN Pad or keypad devices are for secure Personal Identification Number (PIN) entry, the reader is designed to signal the user during Secure PIN Entry (SPE). PIN pads often incorporate a card readers such as a magnetic stripe or smart card reader. The content on the smart card is protected by a PIN to prevent unauthorized copying or use of the information stored on the card. Sensitive data is neither stored on the PC nor communicated via insecure PC / reader connection but remains within the card / reader environment.