Am I over reacting?

[Michael Horn <z28fun () yahoo com>]

I'm not sure if I'm over reacting on this or not since
I'm new to the security scene.  This morning during an
on-line seminar that one of our customers was holding;
the presenter had his desktop shared out (so you could
see everything).  One thing I noticed about the web
meeting software was that it was showing everybody's
IP. I've used other web meeting companies and none of
them showed the IP's.  From my understanding if you
have the IP your halfway to getting into their system.
 If I was a bad boy I could run a port scan to see
what they where running and then exploit it. Is my
thinking correct or am I off base and over reacting?
 
Thank you for your input,
 
Michael Horn

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