As mentioned in a previous post (click here), a friend's SIM got trashed by griefers two nights ago. What happened would seem to be impossible unless there's a major security hole in Second Life. All of the SIM objects started getting returned after two avatars managed to rez something.
Apparently, this has been happening to a number of live and DJ music venues recently and two people have mentioned this happening in the Second Life Forums.
I have been told the name of the inworld group that may have been responsible but since I have no proof, I won't be mentioning them. Regardless, I sure hope Linden Lab has put a high priority on closing this one. Since it's a Security issue, you can't see from the JIRA if anything's being done (issue viewing is restricted to LL and the reporter).