If you have downloaded any mods from CurseForge, or plugins from Bukkit, even through clients such as Prism Launcher or the official CurseForge launcher, it is recommended that you follow the "Am I infected?" guide below.
If you have downloaded any mods from CurseForge, or plugins from Bukkit, even through clients such as Prism Launcher or the official CurseForge launcher, it is recommended that you follow the "Am I infected?" guide below.