PerspectiveComputer Science

Reflections on Cybersecurity

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Science  13 Nov 2009:
Vol. 326, Issue 5955, pp. 943-944
DOI: 10.1126/science.1181643

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Cyberspace is less secure than it was 40 years ago. That is not to say that no progress has been made—cryptography is much better, for example. But more vital information is accessible on networked computers, and the consequences of intrusion can therefore be much higher. A fresh approach is needed if the situation is to improve materially.