Microsoft Confidentiality or what?

On daily basis we work with multiple confidential documents and only selected full time employees have access to them. Everybody is making sure that all documents with "Microsoft Confidential" are secure and absolutely not transferred, sent, forwarded to unauthorized personnel.

So now, go to Google/Live/Yahoo/whatever search engine you like and type in "Microsoft Confidential" with quotation marks. Google: 13,900 documents, Live: 2,026 documents, Yahoo Search 2,130 documents and these are not only HTML pages, search results also include Word, PowerPoint and Excel documents!

There is even a website on English Wikipedia named "Halloween documents" and here I quote: "The Halloween documents are a series of confidential memoranda on potential strategies employed by Microsoft relating to open-source software and to Linux (...)".

Let's see other companies. "HP Confidential": 9,390 (Google search only for all results), "Intel Confidential": 11,600, "Apple Computer Confidential": 57, "Lenovo Confidential": 209, "Nokia Confidential": 206. Of course not all of them are genuine confidential document but just one document is enough to be scared and to start seeing the problem.

Where is confidentiality and security in your company? Are you sure you're not leaking any top-secret strategy documents which are later quoted by news, able to find in any web search engines or being a topic of post on thousands of blogs like this?
Take a look, you'll be surprised!