Interconnections across and among cyber and physical systems are increasing. Our dependence on these interconnected systems is also rapidly increasing, and even short-term disruptions can have major consequences. Reported attacks against Internet systems are almost doubling each year and attack technology will evolve to support attacks that are even more virulent and damaging. However, we can make significant progress by making changes in software design and development practices, increasing the number of trained system managers and administrators, improving the knowledge level of users, and increasing research into secure and survivable systems. Additional government support for research, development, and education in computer and network security would have a positive effect on the overall security of the Internet.
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