It all really depends on how fast FB can service the requests and how long it takes for them to notice and shut it down. Push your priority list off to a worldwide farm and watch the accounts pop out.
How long until FB would have it shut down and the affected accounts locked out?
The problem is that there's no half life. The bug dies instantaneously once discovered. It's not like 3/4 of the Internet runs "old Facebook" because they forgot to update it.
It all really depends on how fast FB can service the requests and how long it takes for them to notice and shut it down. Push your priority list off to a worldwide farm and watch the accounts pop out.
How long until FB would have it shut down and the affected accounts locked out?