Code obfuscation is a technique used to obscure or encrypt the source code of a program in order to make it more difficult for humans to understand or reverse engineer. This can be done for a variety of reasons, such as protecting intellectual property, preventing unauthorized access or modifications, or slowing down attackers attempting to analyze the code for vulnerabilities. Code obfuscation techniques can include renaming variables and functions, adding redundant code, using complex control flow structures, and encrypting or encoding key parts of the code. Overall, code obfuscation is a way to make software more resilient against analysis and tampering.