https://www.tomsguide.com/us/vysk-qs1-hands-on,news-19508.html
Vysk's QS1 Case Locks Down Your iPhone | Tom's Guide
Sep 11, 2014 - Vysk QS1 makes your iPhone communications impenetrable, thanks to an on-board processing chip that does encryption outside the phone.
case locksyour iphonetomguide