Product activation

After the installation, the Product Activation window is displayed automatically. To access the product activation dialog at any time, click the ESET Cyber Security icon (ECS_icon) located in the macOS Menu Bar (at the top of the screen) and then click Product activation. Specify the following:

License Key – Type your license key, which identifies the license owner and activates the license. The license key is a unique string in the format XXXX-XXXX-XXXX-XXXX-XXXX or XXXX-XXXXXXXX. If you purchased a retail boxed version of the product, the license key is located inside or on the backside of the product package. If you have a username and password and do not know how to activate ESET Cyber Security, click I have a Username and Password, what do I do?. You are redirected to, where you can convert your credentials into a license key.

Free trial license – Select this option if you want to evaluate ESET Cyber Security before purchasing. Type in your information and click Register to activate ESET Cyber Security for a limited time. Trial licenses can only be activated once per customer.

Purchase license – Click this option to purchase a license. This redirects you to the web site of your local ESET distributor.

Activate later – Click this option if you do not want to activate at this time.