Well there wouldn't be any point in hacking a beta account. Oh I'm sure it's fine and yeah, sad that SE can't do this functionality themselves (well, won't), I'm just saying.
What do you mean? Your account = SE account and for some is tied to their FFXI which could be worthwhile to steal. I get what you mean but there are reasons there could be loggers in place. What functionality though? Hardware mouse was already in place just wasn't able to activate it in beta. The Alt+tab thing I know can be caused by an unstable client and the error in XIV is something else grabbing attention which crashes XIV in general, windowed or full screen.