Facebook groups are places to congregate with subsets of your friends, either publicly or privately. When it comes to group security, a closed group provides some privacy and a secret group provides even more. Create a secret group only if you don't plan on drawing in new members from the Facebook community.
Search Results
Facebook's internal search engine is available at the very top of every screen on the social networking site, and it is designed to help users find other users, pages, apps and groups. Closed groups will appear in a search result executed by any Facebook user; both to those users who are members in the group and those who are not. A secret group will not appear in Facebook search results.
Name and Member List
The full content of a group, such as wall posts and photos, is never visible to nonmembers, whether the group is closed or secret. Closed groups, however, still allow nonmembers to see the name of the group as well as the full member list. Because a secret group is completely hidden, even the name and member list of the group remain invisible to anyone who is not a member of the group.
Membership Access
If a Facebook user wants to become a member of your closed group, she may send a request to be approved for membership. Once an administrator approves her request, she is officially a member. Membership to a secret group must be initiated by an administrator, or a group member if your privacy settings allow it, but never by the potential member.
Considerations
The administrator of a group may change the privacy setting from closed to secret, or vice versa, as long as the group has no more than 250 members. When you change the privacy setting, all of your current members receive a notification about the change. Changes to a group's privacy setting take effect immediately.
Search Results
Facebook's internal search engine is available at the very top of every screen on the social networking site, and it is designed to help users find other users, pages, apps and groups. Closed groups will appear in a search result executed by any Facebook user; both to those users who are members in the group and those who are not. A secret group will not appear in Facebook search results.
Name and Member List
The full content of a group, such as wall posts and photos, is never visible to nonmembers, whether the group is closed or secret. Closed groups, however, still allow nonmembers to see the name of the group as well as the full member list. Because a secret group is completely hidden, even the name and member list of the group remain invisible to anyone who is not a member of the group.
Membership Access
If a Facebook user wants to become a member of your closed group, she may send a request to be approved for membership. Once an administrator approves her request, she is officially a member. Membership to a secret group must be initiated by an administrator, or a group member if your privacy settings allow it, but never by the potential member.
Considerations
The administrator of a group may change the privacy setting from closed to secret, or vice versa, as long as the group has no more than 250 members. When you change the privacy setting, all of your current members receive a notification about the change. Changes to a group's privacy setting take effect immediately.


23:52
Faizan
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