Risk assessment, Computer Network Security

Assignment Help:

RISK ASSESSMENT

Risk assessment is a step in a risk management technique. Risk assessment is the determination of quantitative or qualitative value of risk related to a concrete situation and a recognized threat (also called as hazard). Quantitative risk assessment needs calculations of two components of risk: R, magnitude of potential loss L, and probability p that the loss will occur.

Risk assessment in information security

There are two techniques of risk assessment in information security field, quantitative and qualitative. Purely quantitative risk assessment is a mathematical calculation which is based on security metrics on the asset (system/application). Qualitative risk assessment is done when the organization requires a risk assessment be done in a relatively short time or to meet a small budget, a quantity of relevant data is not available, or persons performing the assessment do not have the sophisticated mathematical, and risk assessment expertise needed. Qualitative risk assessment can be performed in a shorter time period and with less data. Qualitative risk assessments are characteristically performed through interviews of a sample of personnel from all relevant groups within an organization charged with security of asset being assessed. The qualitative risk assessments are descriptive vs. measurable.

Risk is likelihood of occurrence of a vulnerability multiplied by value of the information asset minus the percentage of risk mitigated by present controls plus the uncertainty of present knowledge of the vulnerability. Risk assessment evaluates relative risk for every vulnerability and assigns a risk rating or score to each and every information asset.


Related Discussions:- Risk assessment

Explain the basic network topologies, Question: (i) ‘Implementation' is...

Question: (i) ‘Implementation' is a critical stage of the Systems Development Life Cycle. Show the four approaches which are commonly used to implement information systems in

Negative cycle algorithm in minimum cost flows, QUESTION: (a) Show the...

QUESTION: (a) Show the Negative Cycle Algorithm in Minimum Cost Flows. (b) List the steps added in finding a Negative Cycle. (c) Apply Dijkstra's algorithm on the subs

Direct sequence modulation, Question 1 a) Provide three advantages of ...

Question 1 a) Provide three advantages of using optical fiber. b) Distinguish between "Direct Sequence Modulation" and "Frequency Hopping" c) Decribe the purpose of using "

Quote, How much would it cost to have a project completed by tomorrow night...

How much would it cost to have a project completed by tomorrow night?

How Ethical are Major Internet Companies?, Ask question #MHow Ethical are M...

Ask question #MHow Ethical are Major Internet Companies?

Compare the suitability and properties of isdn and adsl, Question : An a...

Question : An aircraft manufacturing company is considering linking the network of one of its offices to the network of its Headquarter using either xDSL or ISDN. i. Compare

Explain the main stages in the penetration testing process, Question: (...

Question: (a) i. Explain what is meant by Discretionary Access Control and Mandatory Access Control ii. Which method would be the most effective to ensure that users do

Miss, You are an IT Security administrator in a banking organization. Your ...

You are an IT Security administrator in a banking organization. Your organization hired an outside IT firm to do a proof of Concept for new equipment which is a computer based syst

Firewall architectures-screened subnet architecture, Screened Subnet Archit...

Screened Subnet Architecture This setup provides an extra security layer to screened host architecture by creating a perimeter subnet which further isolates internal network f

Securing the components-information security, SECURING THE COMPONENTS Co...

SECURING THE COMPONENTS Computer can be subject of an attack or the object of an attack. When subject of an attack, computer is used as lively tool to conduct attack. The figure

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd