In theory it's entirely possible. Since the System Administrator controls
the horizontal and vertical, she (or he, in my shop he is I <g>) could
easily install a packet sniffer, capture network traffic, then examine
packets of interest - say, packets using the known chat protocols. Or as
Malke has observed, there could already be software in place that does this
and you just don't know it.
I would suggest that if you are the administree that you review your
company's policies on internet and network use and abide by them. If on the
other hand you are the administrator, you should review your company's
policies on network use and monitoring and abode by them instead.
--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
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