Apple hires mobile encryption pioneer amid encryption debate

Apple has rehired a mobile encryption pioneer as it continues to face pressure from governments wanting access to user data stored on iPhones. Jon Callas most recently worked as a co-founder of Silent Circle, which produced the security-minded Blackphone and has joined the iPhone and iPad maker in an undisclosed capacity, Apple revealed to Reuters. Callas is a veteran of the security industry who also co-founded PGP Corporation.He first worked at Apple from 1995-1997, then again from 2