I guess this is a question for Mr. Breton and maybe Mr. Watters as well. Mrs. Robertson, I can see that in your unique circumstances this might not apply.
I'd always learned in my electrical engineering studies that the stronger and more robust security systems are the ones that are open and vetted and open to scrutiny so that they can be protected. Obviously, when we're talking about things that have very tight timelines, that might not be the case, but open, honest security systems that are designed to protect against people who know the systems are the best ones.
Mr. Breton, you used the analogy of the weakest link in the fence. If we're only buying all of our links in the fence from sole-source providers in a country with only 0.5% of the population, maybe we're not buying the best links, especially for something like email, which is ubiquitous. Maybe you can talk to us about why you feel that a closed security architecture in your organizations makes any sense when most experts say that it's an open security architecture that provides the best security.