[Osiris]

I use TeamViewer on my LAN to be able to hop onto my other Windows boxes quickly. I prefer it over VNC for a variety of reasons. I use a real password on each box tied to my TeamViewer account.

I've also used it to help my Dad. He does the same thing, launches the application to initiate a session and then closes it when he's does. Since it's only open while he's expecting a connection, I don't see how it could be much of a security issue.

It is interesting to note, however, that a company who's product is designed to allow people full access to another computer and promotes security wouldn't have periodic security audits of their protocol to ensure it's sufficiently robust.