Building the Best Minecraft Server 2020

So I'm building a Minecraft server and so far so good I have it set up like so:

Bungee -> Hub -> World1
-> World2

But no matter how much security I put on it with permissions, worldguard, anti-cheat plugins there's always someone who would come and totally destroy the hub or any of the other worlds.

Each world is set to offline modeand only accessiblethrough the Bungee.

Any idea of how to secure a Minecraft server against "hackers".