Assuming in the future time many countries have fully embraced crypto adoption and in fact, many countries are using the country fund to invest in Bitcoin just like what El Salvador is doing right now and something bad starts happening to the wallet they store their fund?
~snip
Imagine a hacker stealing Bitcoin that belongs to a country, how do you think the situation will be handled?
Do not take this too seriously as it's just a fun thought, since this has nothing to do with Banks I am just thinking about how they will handle the situation, launch a red alert or something. Go after the hacker big time with all they have? Or use the Centralised power on the exchange?
Firstly, if it is a whole country's funds then why would they store in just a single wallet.
Ideally they should diversify and store the funds in multiple wallets.
Besides that they should also use multi sig authority to prevent any loss/manipulation of funds.
Keeping the keys secure is the most basic thing which anyone do.
The chances of being hacked after all these implementations are slim but if the wallets still get hacked then there's nothing besides tracking them to the core.