[Pollard]

If the entire web is down, no transactions can be made because no miners to approve them so that hardware wallet is useless. Of course the entire banking system would be down too. That’s when you’re going to have to have cash and hope that people take cash. Else you better have something to barter. Gold, silver, lead & brass, food, water.

[Eagles6]

Yep.

And the internet and the electric grid will go down.

It's just a matter of time.

[Baldwin77]

How about Ivermectin for your bartering chip ???

[precisionshootist]

"If the entire web is down, no transactions can be made because no miners to approve them so that hardware wallet is useless. Of course the entire banking system would be down too. That’s when you’re going to have to have cash and hope that people take cash. Else you better have something to barter. Gold, silver, lead & brass, food, water."

Correct but your Crypto would still be secure. However it's unrealistic to think power would not be restored eventually if not you are likely talking about an extinction level event in which case no currency matters.