# PossibleInjectedClientEvent > Fired when the client detects a potentially injected or malicious mod. `gg.lode.lecternapi.api.event.PossibleInjectedClientEvent` --- ## Signature ```java public class PossibleInjectedClientEvent extends LecternClientEvent ``` --- ## Overview The Lectern client performs integrity checks on loaded mods. If it detects a mod that may be injected (such as a hack client), this event is fired. This is a security feature to help server owners detect potentially malicious clients. --- ## Methods ### getJarFile ```java public String getJarFile() ``` **Returns:** The path to the suspicious JAR file. --- ## Example ```java @EventHandler public void onBadMod(PossibleInjectedClientEvent event) { Player player = event.getPlayer(); String jar = event.getJarFile(); getLogger().warning(player.getName() + " may have injected mod: " + jar); // Take appropriate action (warn, kick, flag for review, etc.) } ``` --- ## Related Pages - [[ClientModsReportEvent]] — Normal mod reporting