> Also, when talking about extra service payment networks like Visa offering, like anti fraud, gotta remember that at least part of problems this service solvin

> Also, when talking about extra service payment networks like Visa offering, like anti fraud, gotta remember that at least part of problems this service solving is caused by the design of the network itself. And while it is not obviously energy hungry service, it is part of what everyone is paying 2-3% in credit card processing fees. The design of credit cards does suck for fraud. I go to a website to buy a product, I put in my card number, exp date, CVV, and it turns out that site was actually compromised and some attacker got my card info. Now I have to cancel it and get a new card. It would be way better if what I entered on that vendor's site was a one-time authorization code, not the full information with which the attacker can spend from my card at other places. Crypto is better in this regard since I never transmit my secret information to the vendor! But crypto is also worse, in that, if I do send a transaction to the wrong place (for example, because the vendor's website was compromised and told me the attacker's address to send to), I'm screwed. And if my electronic device is compromised and my private key stolen I'm really screwed. Ultimately even though crypto has a technically better design, since it also has no support department and no dispute resolution I'm at higher risk. I've never lost money from a stolen credit card. You're right that I pay for that in the 2-3% processing fees... but it's not like Bitcoin is feeless, either.