From SP99 Chair Bryan Singer, of Rockwell:
To the members of ISA SP-99:
Here is a great case for isolating the shop floor, and disallowing protocols such as IRC and Instant Messenger…
AIM Worm Plays Nasty New Trick
See better commentary on www.slashdot.org
For more scary stuff, see the December edition of CONTROL, wherein Rich Merritt in his column tried to scare the pants off your humble editor, and succeeded.