Earlier quoted context omitted.
> "It's usually not said out loud, but cash is often considered to be dirty and criminal ..." Are you sure this isn't impression you've gotten from isolated reactions involving a small number of individuals, perhaps just a single individual? I can't relate to the sentiment at all, having lived here for just over three decades and experiencing the popularity shift from cash to debit card. I can, in fact, not recall a…
I'm Swedish and if someone insists on doing a transaction using cash when Swish or card is available, I'd immediately start to wonder if it's for some kind of more or less shady reason, probably tax evasion at the very least.
It didn't have proper two-factor authentication when you just had to tap a button on the smartphone to approve a log-in or a bank transfer (and users didn't always tell which was which). Now it requires reading a QR code — which it should have done all the time.
AFAIK it still does not use any secure key storage on the smartphone, so if your phone gets rooted by an attacker, the attacker could gain access to your bank accounts. So far, frauds have been much easier to pull off, so criminals have not bothered to hack it. (that we know of)