"There does not exists" and "I've not heard off" are different things. This is motivated reasoning on your part to tell the story that this isn't a big deal.

Most variants require a few requests to infer some settings, and then they can spam their arming-stage, and then their exploit stage. Granted, its not quite as easy as that, but hitting _a_ worker twice on a server once is not all that lucky.

Also, 03:00 at night is not a busy time.