
26
CYBerseCurItY For InDustrIAL ControL sYsteMs
(WWW) came along as the new killer app and popularized IP to the
point of mooting other competing data routing standards, like X.400,
for instance. In the ICS world it is now dicult to nd a device made
in the past few years that does not have some sort of HTTP interface
for device health, conguration, monitoring, or other functions.
e result of this popularity is that IP networks, tools, equipment,
and human skills became widely available and aordable and the IP
networks grew to dominate not only interdomain network commu-
nications but intradomain communications—the IT applications for
business ...