How is data sent safely online, and how can we keep prying eyes away? This week we investigate the basis of cybersecurity, ask if chip and pin is safe and talk to a team of hackers who attempt to penetrate websites legitimately. We also reveal the dangers of wifi as we find out what your mobile phone is revealing about you. Plus the genetic basis of movement, a new form of flexible battery and, in our Question of the Week, how one telephone line can have multiple uses! Like this podcast? Please help us by supporting the Naked Scientists