Civil engineers are increasingly adopting computer and communications syste
ms to conduct business. Engineering relies on computer-aided design, simula
tion, project management software, electronic funds transfers, automated co
ntrol processes, satellite communications, geographic information systems,
electronic mail, and digital records. The transformation of engineering by
information technology holds out much promise in revolutionizing the way en
gineers do business. However, the technological progress also introduces vu
lnerabilities that threaten engineering enterprises. Aside from the touted
Y2K threats, competitors, criminals, and disgruntled employees threaten our
computerized information systems. This paper examines the role of civil en
gineers in this contemporary information age by identifying trends in the u
se of computer and communications systems, examining vulnerabilities of the
se systems, and providing insights for protection. To be truly effective, i
nformation defense must begin at the root level-in each engineering organiz
ation.