6089_Calculate

Calculate ARO, ALE, and CBA

Learning Objective: Use existing conceptual frameworks to evaluate risk controls, and formulate a cost-benefit analysis.

Assignment Requirements

One year ago, the Mesusa Corporation conducted a threat evaluation and created a list of threats, the cost per incident and the projected frequency of occurrence. During the year, Mesusa decided to implement controls designed to reduce the cost per incidence and the number of threats. The spreadsheet, MesusaControls.xls, indicates the pre-control cost and frequency of occurrence, the cost of controls for each type of threat, and the post-control cost and frequency of occurrence. Calculate the AROs, the ALEs and the CBA for this initiative, and return the completed spreadsheet. You can use the websites linked above to help you out. Please include your name on your spreadsheet posted above before submission.

Submission Requirements

• Format: Microsoft Excel
• Font: Arial, 12-Point
• Help website to facilitate the work:
• http://www.windowsecurity.com/articles-tutorials/misc_network_security/Risk_Assessment_and_Threat_Identification.html
• http://www.pearsonitcertification.com/articles/article.aspx?p=728428&seqNum=4

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