NEW YORK ( TheStreet) -- There is a misperception at the heart of the open source vs. closed source debate, which is that closed source is really closed.It's not. Your license says you can't see it. The vendor won't show it to you. Good people are not supposed to look. But bad people look all the time. Microsoft malware exists because bad people look, and find bits of the code they can exploit. It's a continuous game of cops and robbers, with security professionals trying to protect every window and bad guys knowing they only need to unlock one.