Indeed, without more info it is hard to know what exactly happened. All one can do is to guess and speculate. But that Ftp thing leads me to believe that it might have been a gumblar type of attack. Anyway, the thing is that there is no reason for panic that there is a security issue with the latest version of vb. Because if it was, then more forums would have been hacked and news would have been all over the net.

This is the exact reason I don't deal with shared hosting, and why on every server I manage FTP and SSH is either limited access by IP address or is not accessible on the public IP for the servers.