um.. why would someone who "leaked" an internal company build give a damn about waiting a month for "testing?" They would just release it as soon as they got their hands on it, I would think.
Or are you saying that there is a first phase of internal testing that takes a month, and then they open it to more field testers after that month - and it's these additional field testers that may have leaked it (as soon as they got it as I said above)?