[Duralias]

Genuinely curious, what happens if the country instead firewalls/cuts off their internet from the outside world, how does Crypto handle that?

Because that is essentially what has happened now with the SWIFT sanctions.

[rmbyrro]

SWIFT is not the only way for banks to communicate.

Cutting off internet from outside world is much more drastic measure, highly unlikely to happen for a prolonged period of time.

Even if it does happen, you can still use telephone lines to connect. [1] [2]

[1] https://www.dw.com/en/european-activists-offer-dial-up-inter...

[2] https://www.france24.com/en/20110201-speak-to-tweet-egypt-tw...