Is it technically possible to enter the password and get the IP:PORT info without actually appearing in game lobby as a joined user? If so, does lobby have any logging possibilities which could show what users entered the password to a specific game?
IMO It depends on the type of connection. I had public IP on my home router in the past, and I did get simple UDP flood DDOS attacks which targeted my public IP on various ports and caused internet link saturation and/or overloading my router.
As I said I am currently behind Carrier NAT so I am exposed to the Internet only through my