My first calendar spam

I knew this day was coming. It's here. I just logged into my Yahoo Calendar and some spammer (on the BitTorrent_help Yahoo Group) figured out a way to place a spam calendar entry in my Yahoo calendar. Better yet, Bram Cohen, Mr. BitTorrent himself, announced in May 2005 that he was "shutting down this list" and that no further posting would be allowed! But I note that as of this morning, there are still 11,761 members of this group. Presumably every one of them could have received the same calendar spam. I unsubscribed from the group and advise others to do likewise.