No, I don’t think this is incredibly likely to happen. But like how some disaster prep agencies model zombie outbreaks to get people thinking about hurricanes and earthquakes, it’s a good thought experiment.
Let’s say out of the blue there’s an executive order that prevents US tech companies from servicing Canadian customers.
How hosed are you? Would you have access to backups of family photos not on Apple or Google? Does your email still work? Can you access your password manager? If you have a domain registered, is it still pointable to your servers?
I ask this because I’m trying to train myself to look for Can/EU alternatives in my tech stack for work and personal life.
The Canadian banks (and other companies like canadiantire, Air Canada and others) have their own data centers on Canadian soil, and they are connected using fiber leased from Rogers, Telus and BCE. The telecom companies also have their own data centers here as well, both for their own purposes and with rackspace leasing to 3rd parties.
All 3 fiber operators have diverse fiber coast-to- coast in Canada (with one exception where the diversity path passes through Minnesota and Wisconsin, but the other path remains in Canada).
And those fiber companies all have overseas links that launch from Canadian soil.
If the US cut off the connections going south, Canada’s internet wouldn’t become an island.
Infrastructure wise maybe not. That’s just how internet is.
But having worked for the companies that actually support those companies, I can attest that they definitely are on Azure and AWS.