"Some physicists predicted that within the next 10 to 20 years quantum computers will be built that are sufficiently powerful to implement Shor’s ideas and to break all existing public key schemes. Thus we need to look ahead to a future of quantum computers, and we need to prepare the cryptographic world for that future.”

Prof Seth Lloyd of MIT, MIT Review 2008

“Systems built without requirements cannot fail; They merely offer surprises. Usually unpleasant!

Robert Morris, former Chief Scientist of the US National Security Agency (NSA), National Computer Security Center, 1995

“Briefly and simply, assurance work makes a user or a creditor more confident that the system works as intended without flaws, without surprises, even in the presence of malice.” … “The major shortfall is absence of assurance or safety mechanisms in software.  If my car crashed as often as my computer does, I’d be dead by now.”

Brian Snow, Former Technical Director of the US National Security Agency (NSA), "We need Assurance", AusCERT 2008