(No) Surprise! AT&T is Tracking You Too!

Yesterday, I blogged about how Verizon Wireless was inserting a “perma-cookie” into their users’ web traffic, so they can track and sell customer browsing data to advertisers. They’re adding  what’s called an X-UIDH header to every HTTP request that you send through their network, and to make matters worse, they’re offering no good way to opt-out of the program. Unfortunately, … Read More