or this - http://www.ischool.berkeley.edu/newsandevents/news/20130403brainwaveauthentication http://www.ischool.berkeley.edu/newsandevents/news/20130403b... St

or this - http://www.ischool.berkeley.edu/newsandevents/news/20130403brainwaveauthentication http://www.ischool.berkeley.edu/newsandevents/news/20130403b... Still ongoing research in terms of impersonation and other attacks, but quite interesting.