1. To know the full version number of Kaspersky Internet Security for Mac, do the following: 1  Open the main application window. 2  In the main window click the Support button. 3  In the Kaspersky Internet Security window in the Application version section.4  Click the Close button.ow to know the version number from the application menu. You can also find the version number in the following way: 1  On the menu bar of Mac OS X, select Kaspersky Internet Security and select About Kaspersky Security on the application menu(the item is available if the application is launched).