Skype Is Passing Your PC Unique Identifier To Their Server
This post claims Skype is sending on startup to its server your unique PC indentifier to their server. They send the BIOS content containing some unique informations.
Anonymity on Skype seems something from the past. Since you have bought your PC: those UUID are on a bill or an invoice order somewhere, hence a link to your name and your Skype calls.
There are others UUID in a PC (ie MAC address), so this is clearly to allow identification of a call. In a way this is no surprise and easy to defeat, still sad.
Since I am on Linux, I cannot check. Did someone else found this file?

February 7th, 2007 at 9:03 pm
runing XP 32bits & Skype
don’t have that file
some paranoia maybe ?
February 9th, 2007 at 8:34 am
- 1.com may have disappeared from the latest versions; I installed Skype a few months ago.
- You won’t find a reference to “1.com” in the Skype program because it’s heavily obfuscated. I don’t know what part of Skype makes it and runs it.
- You won’t have this happen unless you’re running Win64, because otherwise the program executes in a split second.
March 27th, 2007 at 7:12 am
Well Skype makes its living off of people buying credit. Anonymity was never assured, at least not for their actual customers. And even if your not a customer, anyone you talk to could get your IP I would think.