So essentially the whole population's data has leaked. Furthermore, the notice says mv, which is abbreviation for etc. So it says "name, address, cvr number" etc.
That etc. is funny because the Danish government has a thing called NemID which you use to log into pretty much any online service, including banking, and you can install it on your phone, and when you lose it though you can verify by calling up and giving personal information to verify it is you.
Now there are a bunch of things about this system that are contemptibly stupid and annoying that I won't go into here because of my blood pressure. But now I wonder if the mv. of the personal data covers stuff you could conceivably be using to get a new NemID.
on edit: the really young have not had their data leaked, probably, and the excess of course covers people who used to live in Denmark and left.