Noob question: I recently moved into an apartment which finally has fiber and got a RB5009 with SFP as router. In the rush to move in (and being clueless about routeros, want to learn), I set it up with quick set. Is that reasonably secure for the time being or do I urgently need to do something?
I tried to run nmap on the public IP (from another ISP) and it seemed that no ports are open, so at least it does not seem to expose any interface externally...