Edward Snowden Is Designing a Device That Will Protect Your Phone From Eavesdroppers

Three years after Edward Snowden rose to fame as a whistleblower who exposed government surveillance, the former NSA contractor is working on a device that will let you know if your phone is being hacked.

Along with hardware hacker Andrew "Bunnie" Huang, Snowden presented a design at the MIT Media Lab Thursday for a device similar to an iPhone case that will track electrical signals sent to the phone's internal antennae, Wired reports.