Hi guys. I didn't find what I was looking for by searching so I have opened a new thread. We were talking about hiding IPs and someone chipped in that Facebook logs PC IDs. She said one of the security questions that pop up for people to re-open their blocked FB accounts is this instruction message: "In order to regain access to your account please log in from a computer that you have used before." Some were a bit sckeptical about FB logging peoples' PC IDs so my question to you guys - Does that question mean companies like Facebook do trace your PC i.d. or was the question from F.B. misunderstood and its just an ip address issue they're chasing?