alt Hacker News> Like sure you could in theory see every document I've ever signed if you have a warrant for BankID servers, but you could probably glean most of that if you had a warrant for the banks servers anyway, so it's not really a new capability.
It's a single point of failure. Digital ID servers on creation because as valuable to compromise as value_of_bank_hack*bank_count plus whatever other services are rolled in.
Furthermore now only one warrant is needed, or one illegal executive order. Take the USA as a live example - legal protections aren't actually real, a government official with enough political power can just do whatever they want while the courts struggle to keep up, and then just ignore court orders.
If your identity is spread out in many different ways, at least then there's more friction to compromise. Just because one bank capitulates doesn't mean the actor immediately has health information on you, for example. Just because the unemployment office capitulates doesn't mean the actor has your financial records.
I think a lot of people in the US are clinging to the hope that this type of friction, along with judicial decisions, will cause the process of removing our legal protections to stall out. I'm not optimistic that this is the case, because the party currently driving the federal incursion on private and state-held data is the one that until recently was opposed to things like national ID. Anything can be done in the name of protecting people from N, if you can get a majority to be afraid of N.