From what i understood they explained it with the windows software thing but the key we are talking about is actually used to sign firmware. Since most routers

From what i understood they explained it with the windows software thing but the key we are talking about is actually used to sign firmware. Since most routers dont require signed firmware this just makes the few that does as bad as them. Personally i would think the likely hood that the key would be used for good(Open WRT) is far greater than that it would be used for bad. On a general note: Consumer routers are in my experience generally very easy to hack in to stuff like http://192.168.1.1/setting.cgi?setname=`echo http://192.168.1.1/setting.cgi?setname=`echo 'password' | passwd` is not uncommon so altering the firmware is seldom needed.