best way to prevent server being dumped?

how do i prevent server being dumped?? as some one slipped up about dumping my server? they own another drift server them selfs i wont say names or what not. but they admitted to using redengine and then claimed some one else in my server was trying to dump me ? seems kinda sus right ? so i didnt fall out with him i just banned him and told him i dont wanna work on anything with him and told him he is a liability. i have encrypted most of my lua code etc any thing else i can do tho ?

Everything client-sided can be retrieved, so try to write your code server-sided as much as you can.