One-day system authentication could be widely achieved through brainwaves. One doesn’t need toremember that 8 or more character long strange password. Simply thinking of certain things, such as a personface, or a rotating displayed cube, or line of song would be enough to unlock a device. Electro-encephalography(EEC) sensors are behind the technique. That is where electrical activity in certain parts of the brain is recorded.These sensors are used to generate the graphical lines on charts created from wired electrodes placed on the scalp,as seen in hospitals and TV shows. They are used in hospital to diagnose epilepsy, among other things. In this case,though, one wouldn’t need to be fitted with wired electrodes —or even a headset, which is used already in some current non-muscular EEC computer controls. An ear bud will collect the signals (mental gesture) and perform secure authentication. This research could provide hands-free and wireless interaction, authentication, and user experience, all in the form-factor of a typical ear bud.