They are talking about BankID which is a national identification system that only runs on recent proprietery systems (mostly used on iOS and Android, but IIRC a

They are talking about BankID which is a national identification system that only runs on recent proprietery systems (mostly used on iOS and Android, but IIRC also supported in another version on MacOS and Windows). There is no linux version available (there used to be a few years ago IIRC), and using U2F or other security devices via open standards is not supported. It's a pretty OK system (for most people) made much worse (for some people) by not supporting standards they should have years ago. Yubikey is a swedish company, BankID is a swedish company, they both deal with identity online, how they have not actually managed to interoperate is beyond me. Basically it's a system that caters to the masses and does a pretty good job at that but it's very bad for the non-technical (who don't have a smartphone) and the very technical (who might not use the OS'es that they support). I expect more from a system that most people use to pay their taxes. There are also any number of security questions from the above, but I'll refrain from those.