NSA whistleblower, Edward Snowden, has not owned a smartphone since 2013, which is a remarkable feat. Snowden has been vocal about his fears of being tracked. 

In an attempt combat this type of activity, Snowden has designed an iPhone cover that detects and fights against any form of monitoring. 

Snowden worked with hardware hacker, Andrew "Bunnie" Huang, to develop the cover, which they refer to as an "introspection engine". This cover will keep journalists, activists and human rights workers from being hacked via the location details on their devices.  

"This work aims to give journalists the tools to know when their smartphones are tracking or disclosing their location when the devices are supposed to be in airplane mode," Huang and Snowden wrote in a blog post published Thursday. "We propose to accomplish this via direct introspection of signals controlling the phone’s radio hardware."

For now, the design is aimed only at iPhone 6 models, but the duo hopes to create specifications for a large number of devices.