`Firewall` for smartphones may protect your privacy
(World News Austria)

LONDON: Scientists have developed the first ultrasound-firewall that can prevent hackers from eavesdropping on hidden data transmission between smartphones and other mobile devices. The permanent networking of mobile devices can endanger the privacy of users and lead to new forms of monitoring. New technologies such as Google Nearby and Silverpush use ultrasonic sounds to exchange information between devices via loudspeakers and microphones. More and more of our devices communicate via this inaudible communication...