: You can download a full-featured version of ESET NOD32 Antivirus or their new ESET HOME Security Essential directly from the official website.

: If you just need a one-time check, the ESET Online Scanner is a free tool that removes malware without requiring a license key.

: Sites promising "free license keys" or "free downloads" of premium versions (like v15) often bundle malware, spyware, or ransomware with the installer.

: Most public keys found in online documents (like those from 2022) have already expired or been blacklisted by ESET once they become widespread.

: A basic version of ESET Mobile Security for Android is available for free on the Google Play Store with optional premium upgrades.