It depends on the group. Some deal with Malware. Most it really is just the draw of the community, the recognition and the fun. I say this from having (formerly

It depends on the group. Some deal with Malware. Most it really is just the draw of the community, the recognition and the fun. I say this from having (formerly) been on the inside. Not really surprising when you look at how much non-monetary development goes into the open source community.