this is a great story, need more details. what directional antenna? a yagi? a parabolic? what adapters? what is ONT? did you crack 50 passwords in just a few hours or find exploits? need more details, and the story almost abruptly ends. what operators? you mean cable providers?
Discussion
Directional antennas have a longer range than omnidirectional antennas but they have to be pointed at the target, in my case I used a directional antenna with a range of about 500 meters in a straight line, so I had to move the antenna to capture the different wifis.
The ONT is what transforms the fiber signal into electricity, some routers have it integrated, others do not and you must buy an external ONT. In both cases you will have to use an ONT that is compatible with the fiber signal of your operator.
As for the hacking of routers, either by users of filtered operator services, by brute force, by vulnerabilities in wpa and wpa2, and by vulnerabilities in the router itself, a little of everything.