As I understand it,
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There was a zero day attack launched against some forums running V Bulletin software.
Inject0r ( a hacking group ) claimed The breach gave the hacker full access to "shell, database & root server" on the compromised forums. This included access to the hashed password & user name files. Alledgedly they were selling the hack for $7 online along with screenshots proving the vulnerability was real.
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Tony took the forum offline until he was happy with the situation.
Ashley, has done the same to NB & still has an explanation page up.
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As a precaution in such situations I prrsonally change my "low level passwords" which I use for forums etc. as they often match each other.
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I know generally you shouldn't use the same password for different logins but as I class a compromise of my forum accounts as a low priority compared to say banking it's a risk I take.
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V Bulletin aren't making the sort of noises I would like them to make to keep me happy, so my read on it is they were caught out, time will tell.
Cross post with Tony, must type faster....