The FBI couldn’t mainly because they haven’t caught up to this level as it’s not their primary objective they are first and foremost and investigative outfit.

The FBI couldn’t mainly because they haven’t caught up to this level as it’s not their primary objective they are first and foremost and investigative outfit. The NSA not to mention the entirety of the US defense industry could’ve easily found a way to break the encryption on a single device especially since they only had to break a relatively simple password / passcode it’s just a question of how much would it cost and how long would it take.