Andrew “Bunnie” Huang and Edward Snowden have designed a hardware device that attaches to an iPhone and monitors it for malicious surveillance activities, even in instances where the phone’s operating system has been compromised. They call it an Introspection Engine, and their use model is a journalist who is concerned about government surveillance. This looks like fantastic work, and they have a working prototype. Of course, this does nothing to stop all the legitimate surveillance that happens over a cell phone: location tracking, records of who you talk to, and so on.
In July 2016, Andrew “bunnie” Huang and Edward Snowden presented their research on journalist-friendly mobile surveillance resistance at the first MIT Media Lab Forbidden Research conference; a little over a year later, they have published an extensive scholarly paper laying out the problems of detecting and interdicting malware in a mobile device, and presenting a gorgeously engineered hardware overlay that can be installed in an Iphone to physically monitor the networking components and report on their activity via a screen on a slim external case. Read more here.