Just to make everyone aware. There is a glitch in the coding for the editor that allows non members to access features of some groups. It appears to be limited to changing the name, altering the group rules and making the group public or private.
To the best of my knowledge this "hack" cannot be used to attack members own pages, only groups. It does not permit people to join or ban members or change modererator or admin privileges.
As the moderator of a group that has been vandalised many times I appreciate this is frustrating but mostly harmless.
Seems we have a few jokers who have figured the hack out, I'm hoping they get bored with it and move on. Permalink