[eurasiantiger]

Klarna is notorious for privacy violations. For a good while it was possible to pretty much doxx any of their users just by entering some of their details in any Klarna-enabled online store. If my memory serves, they may even have had a ”which of these similarly named persons are you” dropdown at some point…

[hef19898]

Oh dear... Never really bought through them, just saw them all over the internet as a payment option...

[solarkraft]

I once checked them out (or a provider they had bought, might be "Sofort") when all other options seemed worse.

IIRC I would have had to log into my bank account through them, giving them my login data and letting them read all of my transactions (data they use to gauge trustworthiness, I think). I was shocked that that's legal and amused to find out it probably isn't.

(Disclaimer: Highly anecdotal, it was multiple years ago)