You don't need to risk your security for ad-blocking. There are several official ways to get AdGuard's benefits without paying full price:
Occasionally, a developer will upload a legitimate script for educational purposes showing how licensing systems work. However, these keys are almost immediately revoked by AdGuard’s validation servers. By the time you find them, they are already blacklisted. Adguard License Key Github -
This repository does not provide or crack AdGuard license keys. It offers automation scripts for users who already own a legitimate license. Respect AdGuard’s terms of service. You don't need to risk your security for ad-blocking