Thank you for this question.
We have called out those four nation-states in our third national cyber-threat assessment. They have a variety of motivations to go against Canada by targeting Canadian individuals, by compromising some technology through worldwide campaigns, by targeting Canada's economic value or by pursuing financial gains.
For example, we know that Iran is using cybercriminal tools to avoid attribution. This is one of their techniques. China is going after research, technical data, business intellectual property and military capabilities. North Korea is very much interested in enhancing its economic value by stealing credentials and then stealing funds.
They each have a motivation to conduct those activities or to at least go after a certain aspect of Canadian society to further their own interests.