Anti Exploit ban not saving

Help and Feedback Scripting Support
1

Not sure why but I believe I am doing something wrong

local LP = game.Players.LocalPlayer
local C = LP.Character
local DataStore = game:GetService("DataStoreService");
local RootPart = C:WaitForChild("HumanoidRootPart")

RootPart.ChildAdded:connect(function(Object)
	if Object.ClassName == "BodyGyro" or Object.ClassName == "BodyPosition" or Object.ClassName == "BodyVelocity" or Object.ClassName == "Humanoid" then
		Object:Destroy()
		
		local Data = DataStore:GetDataStore(LP.UserId.."AntiExploitban")
		local isBanned = Data:GetAsync("isBanned")
		local Storage = DataStore:GetDataStore(LP.."AntiExploitban");
		Storage:SetAsync("isBanned", true)
		if isBanned == false or isBanned == nil then
			Data:SetAsync("isBanned", false)
		else
			if LP then
				LP:kick("You have been banned indefinitely for FLYING")
			end
		end
	end
end)```
3
  1. You can’t use datastores in a local script
  2. This is a client sided anti-cheat which is very easy for them to just delete
4

How would I make it work in ServerScriptService?

5

You basically can’t. The server cannot see what the client is doing on their end, and it is up to the client to tell the server what is happening, which in turn can be mediated and intervened by the exploiter themselves.
However, the server can directly observe the player’s character to catch anything fishy. So instead of detecting child creations on the client, you can simply just monitor the physical behavior of the player on the server to see if they’re moving abnormally fast, or they’re in the air for an extended time, etc.
And this kind of anticheat is very difficult, if not impossible, for the exploiter to bypass since they cannot directly access the internals of the server.

6

If your planning to use a set walk speed (for example,16) you could check on the server in a while true do if their xz velocity magnitude is over 16 or 17 for some leeway so that no false detections occur.