"Many applications stay in use for much longer than anticipated, but during the extended lifetime they will be functioning in an environment for which they have not been designed, resulting in completely new vulnerabilities and risks."

“The rapidly evolving field of quantum computers is one of the most active research areas of modern science, attracting substantial funding that supports research groups at internationally leading academic institutions, national laboratories, and major industrial-research centers.”

ARDA, Report of the Quantum Information Science and Technology Experts Panel, 2004

“In the next five years we will counter many 'hacker' attacks but we will not be safe from Nation States and other large entities”

Brian Snow, Former Technical Director of the US National Security Agency (NSA), "We need assurance!", 1999-2008