How do anti-exploits usually work?

[AlternativeOrNot]

So, recently, I made a topic about client-side anti-exploits.
If exploiters can control client-side stuff, how do usually anti-exploits work?

[Sendroaa (sen)]

To summarize what I know, the usual anti-exploit is a server-sided script that detects anomalies in client activity and acts on it. Keep in mind that the anti-exploit differs between games.

[AlternativeOrNot]

What exact anomalies?

tree and zero char limit

[dthecoolest]

Anomalies would include physics irregularities such as client side character teleportation.

I would look at this youtube video I linked in this other post for reasons mentioned there:

What is a good way to ensure an exploit proof game?

I would look at @5uphi video on it, comprehensive with good explanation and in game examples with an exploiters point of view such as physics ownership exploits and remote event firing and such. [Stop Hackers / Exploiters - Roblox Scripting Tutorial]

[Sendroaa (sen)]

Like dthecoolest said, things like sudden shifts in positions, a WalkSpeed that is too high, or maybe even flying are anomalies that an anti-exploit would pick up, and that’s just to list a few.