My favorite answer

No doubt! Was there ever a moment when you thought the jig was up and that they were on to you?
There were a couple of those. We had a problem with our backstopping right at the beginning of the operation when I took over the server. One of our rivals had hacked into the Dark Market server and was looking at who was logging in. He traced the IP address doing a “who is” (lookup) and the phone number connected to our covert IP address, which was supposed to be unlisted but instead it showed the address here at the National Cyber Forensics Training Alliance. By doing some research they determined that the IP address came from this building and they thought it came from me. I had to go on the offensive and say that it wasn’t me and that it was already in the server. Eventually they believed me. There were a lot of wars between rival groups at the time. A lot of people were accusing each other of being “feds” and “cops” and I was able to use that to my advantage to create a smoke screen and create doubt.

have a look here
Rapidshare shares user info