The use of biometric data such as fingerprints to unlock mobile devices and verify identity at immigration and customs counters are used around the world. Despite its wide application, once the scan is stolen or hacked, the owner can’t change his/her fingerprints and has to look for another identity security system. With this in mind, a scholar at HKBU has invented a new technology for lip motion password recognition, which utilises a person’s lip motions to create a password. This system verifies a person’s identity by simultaneously matching the password content with the underlying behavioural characteristics of lip movement. Nobody can mimic a user’s lip movement when speaking the password, which can be changed at any time.