Monitoring software used by The Washington Post on an ordinary iPhone found that no fewer than 5,400 app trackers were sending data from the phone – in some cases including sensitive data like location and phone number. It’s 3 a.m. Do you know what your iPhone is doing? Mine has been alarmingly busy. Even though the screen is off and I’m snoring, apps are beaming out lots of information about me to companies I’ve never heard of. Your iPhone probably is doing the same — and Apple could be doing more to stop it. On a recent Monday night, a...