Your boarding pass does contain information about you, but whether it can be used for evil is another question
(LA Times Clippers)

What does your boarding pass say about you? Enough to stop me from wadding it up and throwing it in the trash as I used to do. Thanks to help from Brett Snyder, president of CrankyFlier.com, which deals with all manner of airline questions, and CrankyConcierge.com, which offers air travel assistance,...