Browser extensions require broad permissions to function. If you install a modified (cracked) version from an unofficial source, you are giving a potentially malicious developer the following abilities:

You won’t receive the critical security updates or new feature releases that keep the extension working as websites change their video delivery methods. How to Get Premium Features Safely

# Install with pip pip install yt-dlp

(a separate program you install on your OS) or verified via a license server. 2. Security Risks