I'm with you that copying all of Google's data is unlikely. It's a serious project for Google itself to significantly move around its own data internally. My po

I'm with you that copying all of Google's data is unlikely. It's a serious project for Google itself to significantly move around its own data internally. My point is that very extensive, damaging information could amount to a mere 100TB subset of it and it's not implausible that could be copied in a day at 10 gig/s. To obvious? How about 100 hosts each pulling 100 meg/s? That's feasible right now. When you really get down to it the datasets I fear being leaked the most are a lot smaller than that. Most bandwidth is used sending many copies of the same content. Attackers aren't going to be interested in downloading the popular video 100 million times, they're just going to grab the logs which are nowhere near that size, and although large it's not implausible that even the best security teams wouldn't notice until it's too late. There is no hard rule that the leaks need to come from the same central database either. That is unlikely considering the fact that large scale services are already, and necessarily, distributed. Imagine thousands of attacker hosts receiving from thousands of compromised hosts.