Virtualization
Code virtualization is a cutting-edge technology that makes your code more complex and obscure, making it harder for someone to analyze and crack your program.
Like mutation, this technique breaks down executable code into individual instructions. However, instead of replacing each instruction with another set of machine instructions, the code is replaced by pseudo code that describes the instruction for the protection interpreter.
This pseudocode is unique to each virtualization system and undocumented, making it extremely difficult for attackers to analyze. As a result, program protection through code virtualization is considered one of the most secure options available.