People are posting their Belarc Advisor reports to the web, these reports contain all of the users software keys. For example, have a look at this search. Pretty neat, huh? For you, yes. For those people that got their software keys visible, probably not.
This is absolutely amazing and the most ironic part is in the notice at the top of the report: “Your computer profile was not sent to a web server.”

All your keys are belong to us. Google for the win