The computer keyboard is one of the most common, reliable, accessible, and effective tools used for human–machine interfacing and information exchange. Although keyboards have been used for hundreds of years for advancing human civilization, studying human behavior by keystroke dynamics using smart keyboards remains a great challenge. It holds features like for its use as a smart security system that can realize detection, alert, recording, and identification. The intelligent keyboard (IKB) can not only sensitively trigger a wireless alarm system once gentle finger tapping occurs but also trace and record typed content by detecting both the dynamic time intervals between and during the inputting of letters and the force used for each typing action. Such features hold promise for its use as a smart security system that can realize detection, alert, recording, and identification. The IKB is able to identify personal characteristics from different individuals, assisted by the behavioral.