Here is a Version 3 scenario I think would be FAR more common than unknown Hams remotely operating an unattended FLEX station:
A FLEX owner is rag chewing with a ham friend. HAM FRIEND is curious about the FLEX so OWNER says "Would you like to try my FLEX without leaving home?"
HAM FRIEND: "You have to be kidding?"
FLEX OWNER: "Nope. I'll email you a link to a
piece of FLEX software that you download and install on a
Windows computer. It will take you less than 15 minutes. Then I
will email you a special password to let you use
my FLEX 6000 over the internet while I'm sitting here watching
you on the screen. We'll also continue talking on ham radio so I can
HAM FRIEND: "Will this screw up my computer?"
FLEX OWNER: "I've never seen it cause a problem. And when we're done you can uninstall it with no ill effects."
HAM FRIEND: "What do I do after I install it?"
FLEX OWNER: "I'll guide you through several steps to log into my FLEX
and you will be on the air."
Etc... And when we are done
I will change the password
as if nothing had happened. (CAVEAT: I have run Starbucks and
MacDonald's Remote with V2 but not installed V3 so have no experience
with it, yet.)