What is a external

A external is completely different from a executor. A Executor injects live into the roblox process and executes lua code while a external doesn't need to inject or attach itself to roblox. A external reads the memory from the roblox process using operating system level apis to remain undetected. Basically a external is aimbot, esp, triggerbot and more features that don't modify roblox at all making it completely undetected. Such as valex external allowing you to have silent aim and stuff. ESP works by reading the memory of roblox and doing some epic stuff to highlight players but it layers it ontop of roblox without actually modifying roblox's binary. Aimbot and silent aim read the memory to find where players are and then it simulates mouse movement to have aimbot.

PS. My english isn't great so mind that lol