The lead designer—a British woman, I remember—said she had coded it to be possible but vanishingly hard to find the way in, and that sort of challenge issued to the Internet usually stands for about a day. But the Chamber in Witnessed evidently resists intrusion. A group in Denmark actually went through the code, line by line, and still couldn’t do it. Apparently the coding is itself encrypted, a vastly sophisticated thing that uses external verification and all sorts of crap the NSA gets very excited about.