It's been an easy week on my forum, a member and personal friend of mine decides he wants to sell his motorcycle to upgrade, so a thread is created. People respond and comment, a day later he announces that the bike has sold. Within this week the same member creates and responds to threads, we chat back and forth a bit via PM. Business as usual. I find out tonight that he has been out of town for a week, and asks "why is my bike for sale?" Not only my forum, but four other forums of the same niche have the same type of posts. What's even more bizzare is this person posing as this member sent myself and three of his friends a personal email saying that the person he sold his bike to, cheque didn't clear so I had to go and get the bike back, etc, etc. Now he did admit to having the same password across all the boards, but what would appeal to somebody to take the time and cause this kind of trouble? On top of all that, I noticed a new member has joined the site tonight...with the original member's email address. It's very odd and I'm not sure what to tell him, to me this isn't a site security issue, it's more of a password security issue. Frankly, I am bothered by the whole situation and I would like to know the root cause. Anybody have a similar experience??