WoW: Activision-Blizzard Placing Tracking Codes in your Screen Shots

Bar-codes placed inside your World of Warcraft screen shots were found to contain encrypted information about you.

Inside the very center of any screen shot taking inside the WoW Screenshot tool has a barcode which displays information about your Username, Server IP address and the time the screen shot was taken. Up above is a sample taken from a screen shot that has been sharpened to show the code.

It doesn't look like any personal information is encrypted inside your images. Dating back to WotLK patch is when we can first see this being used.