Originally posted August 15th, 2014 with the following commentary:

Due to tradition, the name an NKP officer uses is based off an alias (middle name or nickname) followed by the name of the Clanhouse they are working in…which do originate from founding members’ surnames.

This alternate name in modern times is only used in the most formal of events, like reports, investigations, and NKP-related meetings, but the tradition is still alive and kicking.