I know this thread is a little old. I hate to correct people. Some drivers are open source. Some Microsoft software is open source. Some third party is open source like browsers for example. VLC media player is another one that is open source.
BSD is technically not open source. It is different type of license.

Quote: Originally Posted by
RoasterMen
Because it's gonna lead to some in-vulnerabilities.
Roasterman proprietary software doesn't have vulnerabilities? I know proprietary software & open source software has its pros & cons.