Avast frequently audits their database. When they see one code being used by thousands of people globally, they blacklist it

These are intended for large organizations but are quickly blacklisted by Avast once they are detected on public forums. Modified License Files:

However, you can use the official app to get a basic version of the VPN for free [10, 19]. If you already have a paid code and need to activate it, follow these steps: How to Activate Avast SecureLine VPN To activate your legitimate license on your device: Open the Avast SecureLine VPN app [2]. Navigate to Menu →right arrow Enter activation code [2].

At the time of writing, the longest official license Avast has ever sold expires in 2028 or 2029. Why? Because offering a 25-year license is financially suicidal for a SaaS (Software as a Service) company. Servers, bandwidth, customer support, and protocol updates cost money every single month.