this post was submitted on 30 Oct 2024
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Though having cash is not enough. The stores also need to be able to accept cash without internet usage. I think we had a case in germany a few years ago, where some supermarkets could not sell anything, because the servers, to which the local payment system connected (also uses for cash) didn't work. Not sure, if that was because of a security incident.
I see cash businesses all the time that can operate without power or Internet. Festival / market vendors, food trucks, etc. It's not hard to count money, give change, write down a receipt if needed.