Roblox uses Byfron (Hyperion) anti-cheat. When you inject a Kaitun script on PC or use a modded APK on mobile:
Here is a story of a player's journey from Noob to God in under a week. The Tale of the Automated Pirate Day 1: The Humble Beginning (Level 0 - 200) NoobPlayer99 BLOX FRUITS Script Mobile PC AUTO KAITUN 0 - ...
Many newer versions are "No Key" scripts, meaning they do not require a separate verification step to activate. Critical Risks & Warnings Roblox uses Byfron (Hyperion) anti-cheat