Privacy Protection is only available in the premium version of Kaspersky Internet Security.
By default, the app hides the following data for private contacts:
If a private contact sends a text message, by default the app displays the message without showing the contact's phone number. If a private contact makes a call, the app allows the incoming call but does not display the contact's phone number.
You can select which data to hide. For example, you can completely hide incoming text messages and calls from private contacts. In this case, the app blocks text message notifications and calls from private contacts (the caller hears a "busy" tone).
To select which information to hide:
If you forget the secret code, you can recover it.