- Crypto inherently holds no security benifits over traditional banking. Fortran has been used for decades because it has worked, and there has been little need for change.Fortran isn't a security hole in itself. In fact it has all of the same problems with private PIN access and MFA, PLUS all the downsides that come with malicious smart contracts. As far as personal security goes, crypto is much much worse.
- The immutable and public nature of smart contracts. Why should anything be immutable? What if something is done by mistake, or by fraud? The benefits of traditional banking is that at the end of the day, there is a human on the other side that can reverse things if stuff goes wrong.
- I see no benefit of the entire chain being public, just because I give someone my public key, because I spend money with them, or my employer needs to pay me, why should they be able to see EVERY transaction I have ever made?