In Skype for Windows 10 (version 12), we ask you to verify your phone number if you want to automatically add people from your address book who are also on Skype.
Skype will use this information to verify your contact details and allow others to find you on Skype. By verifying your contact details, we can help ensure that we're adding the right people when automatically adding friends.
To change the setting later:
- Select your profile picture.
- Select Settings.
- Under Contacts, select Don't use my address book.