"The Homeland Security Department, the lead U.S. agency for fighting
cyber threats, suffered more than 800 hacker break-ins, virus outbreaks
and other computer security problems over two years, senior officials
acknowledged to Congress.
In one instance, hacker tools for stealing passwords and other
files were found on two internal Homeland Security computer systems.
The agency’s headquarters sought forensic help from the department’s
own Security Operations Center and the U.S. Computer Emergency
Readiness Team it operates with Carnegie Mellon University.
In other cases, computer workstations in the Coast Guard and
the Transportation Security Administration were infected with malicious
software detected trying to communicate with outsiders; laptops were
discovered missing; and agency Web sites suffered break-ins."
Article Link: http://news.yahoo.com/s/ap/20070620/ap_on_go_ca_st_pe/dhs_computer_security