Can a company pay people to discover bugs in their systems? This already exist for security issues where experts about security find security issues in browsers, OS or any other kind of programs but they won't freely give away their discovery as they spent a hard time on it. I think this is correct as the company will benefit from this.
As we are close to tag as final a major release of our Object Database (NeoDatis ODB), we would like to be able to do that : pay people to help us find bugs in our database engine.
Obviously we don't rely on this to guarantee the quality of the release: we strongly use unit tests. We currently have more that 700 junits.
So we decided to create a 'NeoDatis Zero Bug Campaign' in which we will pay 10$ for the first 10 bugs found on the current java release: 1.9 RC4.
read http://www.neodatis.org/1-9-zero-bug-campaign for more information!