Given the complexity of the thing, they need a LOT of high profile people to create such a stuff. It's very unlikely none of them have been either:

- bribed

- threaten

- felt guilty about it and decided to make amend

My money is that exploits have been on the blacks market for a while now. We just have an official public demo now.

Rule of thumb: when something that catastrophic is made public, the worst already happened and you are late to the party.