This paper discusses considerations used in formulating the Network
Security Policy of the City of Detroit Water and Sewerage Department (DWSD),
the nation's third largest water and sewer utility. The challenges imposed upon
DWSD, which serves 4.3 million people in 126 communities across 1,011 square
miles in southeastern Michigan, and which is undergoing a $4.3 billion upgrade
of its water facilities, underscore the necessity of balancing security issues with a
continuing high level of customer service.
Intended to supplement the City of Detroit's information technology security
policy, the DWSD strategy addresses security issues involved in the relationship
between the DWSD business network (which includes financial information,
maintenance planning and control, e-mail, e-business, office automation) and its
SCADA network (which includes wide area networks, local area networks, and
radio-based networks). Specific strategies address physical connectivity, secure
connection and shared media, as well as contractor networks, equipment and
Web sites.
Participants will gain insight in planing for and implementing effective cyber
security policies without unnecessarily impeding efficient utility operation or
customer service. The principles described can be applied equally well to both
small and large SCADA networks.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 130 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 8 |
| Published : | 04/27/2003 |