Valve’s Anti-Cheat (VAC) is constantly updated to detect signature patterns of public "free" hacks. Even if the hack "works" for one match:
The Hidden Risks of "CSGOHack v1.2.21.zip": Why You Should Think Twice CSGOHack v1.2.21.zip
If you don't have it already, set up mobile authentication for everything. Valve’s Anti-Cheat (VAC) is constantly updated to detect