[Cryptography] Keeping Malware from Using Security Hardware

[Jon Callas]

> On Mar 18, 2025, at 09:08, Chris Frey <cdfrey at foursquare.net> wrote:
> 
> This has nothing to do with the payment system.  If I pay cash
> at the local variety store for a packet of crisps and they turn out
> to be moldy, I go back for a refund.  There is nothing in cash itself
> that enforces a refund, yet we get along just fine without it.

Sure. And the advantage of, say, a credit card is that there's another party that will adjudicate things. You can dispute the charge if you are unhappy, and there are rules about what you might get reversed and not. Many cards also offer secondary insurance on purchases of some sorts.

> 
> You take someone to dispute resolution with the evidence you have:
> the receipt, the packet of crisps, and your testimony of what happened.
> If cash was used, that's all.  If Bitcoin was used, you have the
> ledger transaction to show too.  What more do you need?

The transaction reversed.

	Jon