I doubt Google would want to talk about every single way that we try to secure our networks from hackers, but Google is pretty good about open-sourcing things (or publishing papers) to contribute to the industry's security practices.
I agree, Google does open up a lot of projects and publishes a lot of papers as well on their work. I guess my comment was a bit of a gut reaction to the wording used that entailed "our problem are unique" which are many times used to justify brand new proprietary projects.
I imagine whats used is based on a combination of open source projects (either theirs or others) with their own secret sauce. Which is pretty standard process I guess.
Alright, maybe I commented too early. The wording threw me off.
BTW, a company like Google enforcing software choices for employees... Meh.
From talking with Thomas before, if I have this correctly, is that Google doesn't allow offsite development. So it seems most Googlers have a desktop for development and an laptop for other things with NO code on it. I may have that wrong, but I'm sure some Googlers here can verify that or not.
I'm actually not sure what the IOS devs do. They might have different rules since their projects are more standalone and not tied into the rest of the main Google source tree, but it might also be that they just develop on-site. You could probably be fairly successful with XCode using something like SSHfs if you're on a fast enough connection, but I don't know if anyone actually does that.