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[In defending networks against potential intrusions, certain vulnerabilities may seem acceptable risks when considered in isolation, whereas an intruder may combine such vulnerabilities for a multi-step intrusion and successfully infiltrate a seemingly well-guarded network. Relying on human...
[In this chapter, we provide a brief review of related work, including attack graphs and applications, existing network hardening techniques, and other relevant topics, such as alert correlation and security metrics.]
[In this chapter, we briefly review some important concepts that are relevant to further discussions. First, we introduce attack graph and its related concepts. Second, we formalize the network hardening problem. Third, we briefly review standard heuristic approaches and their applicability to...
[In defending one’s network against cyber attacks, certain vulnerabilities may seem acceptable risks when considered in isolation. But an intruder can often infiltrate a seemingly well-guarded network through a multi-step intrusion, in which each step prepares for the next. Attack graphs can...
[Attack graph analysis has been established as a powerful tool for analyzing network vulnerability. However, previous approaches to network hardening look for exact solutions and thus do not scale. Further, hardening elements have been treated independently, which is inappropriate for real...
[In this book, we have reviewed several automated solutions for hardening a network against sophisticated multi-step intrusions. After reviewing necessary background information, we described a network hardening technique for automatically generating hardening solutions comprised of only initial...
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