> Whereas closed source proprietary software has no eyeballs on it. Open source is at least an opportunity to identify problems by third parties without reverse

> Whereas closed source proprietary software has no eyeballs on it. Open source is at least an opportunity to identify problems by third parties without reverse-engineering. Open source also allows code analysis tools to do automated tests across wide numbers of codebases. Shared source (http://en.wikipedia.org/wiki/Shared_source http://en.wikipedia.org/wiki/Shared_source) also has these properties (but not the freedom properties of open source).