I winced when I saw that word, "unhackable." "Highly hack resistant", would be a far better terminology, IMO.
Why? Because one tiny hack of any part of it would shake confidence in the whole Wave system of trust and security. Either it was a mistake in judgement, or there is an unusually high degree of confidence.
Even if it is the latter, it seems to be a challenge to hackers everywhere. Remember MS's highly touted security that was foiled in minutes by high school kids.
Otherwise, on with the party--Bluefang