Mr. Gerretsen, thank you for the question. I can certainly, based on briefings I've had over the last year and a month from CSIS, offer a view, and perhaps Ms. Lloyd could add something.
The reason CSIS or people like me, who may have access to some of this information in the routine course of their job, don't confirm or identify particular sources or partner countries, as you said, that are sharing information with us—and we would, of course, share information that we gather with those same countries—is that if we confirmed both the tradecraft and the way these intelligence agencies gather information or if we confirmed it was agency X and not agency Y, perhaps some of these bad threat actors could identify either human sources who would be at huge risk—you can understand what that would mean—or be able to understand the tradecraft, the very sophisticated and effective way that CSIS and other agencies gather this information in order to protect Canadians. That's why every previous government has been very prudent, and that's why the Security of Information Act also provides criminal sanctions for those who cross the line.
Perhaps Vanessa could add something specific, or, Mark—