32 points
Tell me you have never worked in IT security without telling me you never worked in IT security.
To give you an actual answer, instead of pure Internet snark, the concept you’re proposing is called “security through obscurity” if you want to research it.
The TL:DR of it is it doesn’t work. If it did, all software would be proprietary and things like viruses wouldn’t exist. The source code for Windows isn’t available, but Windows gets exploited constantly.
