Assignment task: Write a security policy for a distributed version control hosting site like Github. Make sure to define relevant roles, functions, and policies. Your policy should be of the sort that would be usable to an implementor of a clone of Github. For the purposes of this problem, assume that Github is the maintainer of Git.
If you can't find relevant material on Github as currently implemented, invent new material as appropriate. Try to be as complete as you can, but emphasise the Github-specific aspects-in particular, what security goals are the most relevant for Github? What roles does (or, rather, should) Github have, and what should each principal be allowed to do?
(This problem is a bit open-ended, but should give you excellent practice in writing a security policy. Also, you may actually care about such security policies for designing systems used by large numbers of people- or if you use Github yourself!