The Sony hack is one of the most serious corporate hacks in history. Hackers stole 100 terabytes of data, including unreleased movies, movie-star salaries, employee information, embarrassing executive emails, insights into the Hollywood movie system and more, then released the most damaging bits online.
The hack also took down Sony's payment system and brought its movie making to a halt. Even internal communications - email and phones - couldn't be used. To get the company working again, Sony had to do something surprising.
That surprise was to pull its old BlackBerry phones out of storage. If you'll remember, BlackBerry hasn't been doing so well lately, losing consumer and corporate ground to Android and iPhone. In fact, it's down to 1% market share.
However, BlackBerry phones do have something that other systems don't.