If you use Skype to chat with your friends and family, it is doubtful that you want to chat with any and everybody that uses Skype. To only allow chats from members of your contact list, follow these steps:
1. Click Tools and select Options.
2. On the left side, select Chats & SMS.
3. Under Allow chats from, select the only people in my Contact List radio button.
4. Click Save.
