This document summarizes a research paper on a smart security system using RFID (radio-frequency identification). The system uses an RFID reader connected to an Arduino board to read RFID tags and control a servo motor that opens and closes a door. It allows entry only for authenticated users whose RFID tags have been registered in the system. When an authorized tag is scanned, the servo motor opens the door, an LED lights up, and a message is displayed granting access. For unauthorized tags, the LED and buzzer activate with a message denying access. The system provides contactless access control with RFID tags embedded in cards or keychains for convenience and security against hacking. Potential improvements discussed include connecting it to cloud services