You probably don't think about it when you chuck your used boarding pass into a waste bin, but it has more personal information about you than you may realize.

Every boarding pass has a QR code, which holds personal information that can be valuable to a hacker or thief.

And you don't have to be a sophisticated computer genius to figure it out, either. The information is available to anyone who downloads a free barcode scanner app.

Besides your name and some other basic information, you can also get the person's frequent flyer number and record locator.

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That's enough information to log onto the airline the given person is flying and mess with the itinerary, change seats, cancel a flight, change your account pin and steal all your frequent flyer miles.

A hacker would also have access to see future flights, and personal contact information.

Moral of the story: Don't post pictures of your boarding pass to social media, and shred them before you toss them.