BlackBerry sues Facebook over patent infringement
BlackBerry is suing Facebook and its subsidiaries, Instagram and WhatsApp, alleging the social network has infringed on some of its patents including security features, mobile notifications, and combining gaming with messaging.
Why it matters: BlackBerry no longer makes phones, but it's still looking to profit from patent licenses and software. This is not the first time Facebook has been sued by a fellow digital giant; in 2012, Yahoo sued Facebook, alleging it infringed on some of its advertising patents. BlackBerry, meanwhile, has also gone after Nokia and others.