Fast Company last week brought home the issue of online privacy with a chilling piece on in-flight eavesdropping. It turns out that USA Today’s Steven Petrow, while working on a story on the Apple-FBI battle over iPhone access, “had been hacked mid-flight” over an American Airlines Wi-Fi system. A man seated behind him had read his emails as well as those of other passengers on the flight. The article doesn’t go into detail on how the man hacked into American’s Gogo Wi-Fi, but it’s not hard to guess what might have happened. More importantly, this incident is yet another wake-up call for being aware of this type of spying and to do something about it.