Well. Have a look a comment from the news, I am quoting.
Unlike Cuba, who fully understands the problems with proprietary operating systems, my employer, in their great wisdom, has decided to go to a fully Microsoft shop on our works computers, because, and I will quote the memo.....
"Open source software cannot be used on *********'s computer systems as anyone can alter the source code and place a virus inside.
Windows Vista or XP should be used in place of Linux or Solaris on the servers and all personal computers should be running Windows Vista.
No-one across the floor should install any product without the approval of the line manager."
The funny part was the anyone can stick a virus into the code, because anyone can view the code.
I should point out that the person who sent out the memo is a newly appointed director, he came to us from PC World.