ELI5: Explain Like I'm 5

Shellcode

Shellcode is a type of code or program that is used by hackers to gain access to computers. It often looks like a jumble of numbers and letters, and it is usually hidden inside of programs. Once a hacker has shellcode on a computer, they can take control of the computer and do bad things, like stealing data or deleting files. The shellcode can also open up a connection so the hacker can access the computer from a remote location.