I read this article recently where you are warned not to share you boarding passes on social media, or indeed online.
It is quit true the barcodes on the pass contains quite a fair bit of personal information. Imagine someone being able to decipher all of that! Actually it is easier than we think. If one adds up the name, frequent flyer membership number, flight details and the bar codes, you can triangulate easily who that person is just by a plain search of the internet on say : facebook, linkedin, twitter etc.
Gather a little here, a little there. And soon you’re talking about serious identity theft potential.
Sleuths have used less clues to sniff out their targets. And identity theft can be rather devastating. And lest you think this only happens to the aged and offline, beware!
We had experienced this ourselves. In setting up social media accounts, we found that our email had been used before for registration. It was an email that we frequently used for communicating with friends. As really active users, you should be able to notice suspicious activities or tell tale signs.
No matter how sophisticated you are, it pays to be careful.