Until now, anyone available on WhatsApp had the option to create a group and add anyone from the list of contacts. With the new privacy setting for groups, users will have the option to set the privacy settings to either nobody, my contacts or everyone. Nobody means you will be sent an invite to join a group, but you will not be added until you approve. My contact setting allows people in your WhatsApp contact list to add you in a group.
Here are the steps to check or enable the new privacy settings for groups:
Step 1: Update the WhatsApp app
Step 2: Open the app and go to settings
Step 3: In Settings, click on account, then privacy, then groups
Step 4: Tick on the radio box next to nobody, my contacts or everyone to change the settings, and you are done
Enabling nobody in privacy settings for a group would prompt the person inviting you to the group to send a private invite through an individual chat, giving you the option of joining the group. The invite will be valid for three days, before it expires and automatically rejects the invite request.