Again, this area is a little outside of our area of expertise. What I can tell you is that we have a very big recertification process for all of the software that is available through our site, commercial software, to file income tax and benefit returns. These cannot be certified by the CRA until they've met our very high security standards.
I can also tell you that with regard to our own systems and portals that are used by businesses, individuals, and representatives to deal with us on a variety of matters and access several services, including filing returns, we use the same high level of security that is used by Canadian financial institutions for online services. They are monitored at all times, obviously particularly during tax season, but we're very cognizant of the fact that security, the security of those portals, is instrumental to Canadians having confidence in sharing their information with us, so we have a very rigorous security system around the CRA system.
It essentially is a tiered system. It starts with Shared Services Canada. That has a number of security mechanisms around the outer layer. The next layer is CRA's own firewall, which is extremely strong. In the very rare instances where some kind of malware may get past that firewall, we have a second firewall that also bounces back any kind of malicious software or malicious attack. We have one of the strongest, if not the strongest, security regimes around our technological systems of any government department, for precisely the reasons you're talking about.