“The Department of Homeland Security (DHS) is warning that hackers from the loose online protest collective called Anonymous have threatened attacks against the computer systems that run factories, power stations, chemical plants, and water and sewage facilities.
“While Anonymous recently expressed intent to target [industrial control software], they have not demonstrated a capability to inflict damage to these systems,” reads a leaked bulletin from from the department’s National Cybersecurity and Communications Integration Center.”
(Source: Hacker group threatens industrial computer systems – Washington Times.)