CS283 Class 1 Recap - 20090908

CS283 Class 1 Recap - 20090908 - Class 1 (20090801) Recap,...

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CSCI 172/283 Fall 2009 GWU Class 1 (20090801) Recap, Additional Concepts, and Q&A
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GWU CS 172/283 - Autumn 2009 Holmblad - Lecture 01 - Rev 20090908 2 Class 1 (20090801) Recap Key Concepts Confidentiality, Integrity, and Availability Definition of Availability Threat, Vulnerability, Risk, Countermeasure Model Residual Risk Security Policy vs Security Mechanism Security Mechanisms: Secure, Precise, Broad Network Diagram handed out at first lecture Additional concepts: Virtual Private Network, Firewall, Proxy Server A look at a real, vulnerability published by Microsoft Additional Reading Continue Lecture at slide 28 of Lecture 1 – Part 2
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GWU CS 172/283 - Autumn 2009 Holmblad - Lecture 01 - Rev 20090908 3 Class 1 (20090801) Recap Definition of System Availability Availability of a system is the percentage of time when system is operational. Availability of a hardware/software module can be obtained by the formula given below. A = (MTBF/(MTBF + MTTR)
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CS283 Class 1 Recap - 20090908 - Class 1 (20090801) Recap,...

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