Tag Archives: expected value
Why the “Risk = Threat x Vulnerability x Impact” Formula is Mathematical Nonsense — Part 2
August 31, 2010 – 6:00 am
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In my last post, I argued that security risk managers should stop using the “Risk = Threat x Vulnerability x Impact” formula (hereafter, the “R=TVC formula”), for two reasons. First, the variables “Threat” and “Vulnerability” are typically undefined; indeed,…
Why the “Risk = Threats x Vulnerabilities x Impact” Formula is Mathematical Nonsense
August 23, 2010 – 6:00 am
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Every now and then I will find a security practitioner presenting the following formula when discussing information security risk analysis (ISRA). Risks = Threats x Vulnerabilities x Impact In some versions of this formula, the word “Consequence” is sometimes substituted for…
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