You're going on holiday and would like your Facebook friends to know. So you post a photo of your boarding pass –what's the worst that could happen, right?
In an experiment, Steve Hu from iflyflat.com.au reveals how ridiculously easy it would be for fraudsters to have access to your personal information including frequent flyer logins, and even credit card details. Yes, just from posting a photo of your boarding pass.
We've compiled a list of seven other pieces of information you should never post online.
1. Your ID