It seems that you can have a protected address in Denmark as well. Apparently, the protected address is even a field in the current leak.

I worked on systems that has this, it would be funny if it wasn't putting people at risk. You can see the address, and then as you say there is a field that indicated that this is a protected address, so don't leak it,... unlike the others with you're then completely fine to leak?

According to their announcement, the names and addresses of people with protected address, were not leaked.