Apple's 'Hey Siri' recognizes individual voices in iOS 9

Apple's "Hey Siri" feature will be able to tell if you're the one summoning her, at least based on a new feature iOS 9.1 beta testers have discovered. The feature allows the "Hey Siri" feature to be set up so that she will "recognize your voice when you" call for her. The reason for this seems obvious (but may not …