ICT205 CYBER SECURITY T321 Solution

Executive Summary:

Every organisation serves a purpose. Disaster organization is critical in preserving an organization’s statistics resources, and therefore its determination, in IT-related risk in this cardinal era, as companies employ automatic information technology (IT) schemes to process their statistics to improve to serve their goals.

An operative risk administration procedure is a critical constituent of any effective IT safekeeping solution. The fundamental purpose of a company’s risk management approach should be to safeguard the company and its capability to achieve its goals, not simply its IT assets. As a result, the risk administration process should be considered as an important organisational administration occupation rather than a practical effort done by IT specialists working in and managing an IT system.

Introduction:

Risk is the absolute negative consequence of risk usage, taking individually the likelihood and the probability of incidence into consideration. The procedure of risk assessment, risk assessment, and risk reduction measures towards an acceptable level is known as risk management. This book serves as the foundation for the creation of a successful risk management system, since it covers both definitions and practical instructions for evaluating and extenuating risks detected in IT systems. The primary purpose is to assist enterprises in effectively managing the risks associated with IT-related equipment. (Seker, R. 2017).

Purpose:

This guide also includes advice on how to choose low-cost security measures.

These controls may be used to decrease risk in order to better safeguard essential target statistics and the IT schemes that process, accumulate, and manage it. Administrations may opt to enlarge or condense the wide-ranging procedures and methods outlined in this book, and to seamster them to their specific IT-related policy control incidents. (Aerts, J. C. 2017).

Objective:

The goal of risk administration is to help the organisation achieve its goals (objectives) by

(1) improved protection of IT systems that hoard, develops, or convey organisational evidence;

(2) allowing administration to make up-to-date risk administration conclusions to ensure the costs that form part of the IT economical; and

(3) secondary administration in approving (or approving) IT3 programmes on the basis of supporting documentation.

Target Area:

This handbook serves as a starting point for both experienced and novice, technical and non-technical workers who support or develop risk management processes in their IT systems.

These personnel include:

• Senior management, equipment owners, and budget decision makers for IT security are examples of these workers.

• Chief Government Information Officers, who are responsible for ensuring the implementation of disaster risk management in the agency’s IT systems as well as the security offered by these IT systems.

• The Designated Approving Authority (DAA), who makes the final decision on whether to approve the IT system’s installation. (Cohen, H. 2020)

• An IT security manager who employs a security mechanism

• Information system security officers (ISSOs), those are in charge of IT security.

• Holders of information technology (IT) system software and/or hardware used to support IT operations.

Holders of information kept, deal with, and transferred through information technology systems

• Commercial or operational management in charge of the IT gaining process

• Technical support personnel (e.g., network, system, application, and site administrators; computer experts; data security analysts) who bring about and manage the security of IT systems.

• IT system and application programmers, who write and upholds the code that has the potential to compromise system integrity and data.

Risk Mitigation Plan:

The second risk management phase is risk mitigation, which entails prioritising, assessing, and implementing effective risk mitigation mechanisms indicated in the risk valuation process.

For the reason that eliminating all risks is frequently unreasonable or nearly unreasonable, it is the duty of senior executives, operational and business executives, and others to take a cost-effective tactic and use the most suitable controls to reduce equipment risk to a satisfactory level, to a lesser extent. unfavourable impact on the administration’s possessions and horns. (Ghodake, G. S. 2021).

Senior management uses risk reduction as a systematic technique to decrease equipment risk.

Any of the following risk-reduction measures can be used to reduce risk:

• Risky Guessing. Accept possible hazards and keep using the IT system, or implement risk-reduction procedures to a tolerable degree.

• Risk avoidance. To avert risk, eliminate the cause and/or effect.

• Risk mitigation. Reduce the danger of threatening usage by employing safeguards that reduce the negative impact of threatening use (e.g., use of support, blocking, search controls)

• Risk management. Risk management is accomplished by developing a risk-reduction strategy that prioritises, employs, and maintains controls.

• Investigation and Education. Reduce the chance of loss by acknowledging a risk or error and researching risk-mitigation procedures.

• Risk Transfer. Transfer risk by compensating for losses in other ways, such as purchasing insurance.

This technique is also represented in the six principles listed below, which give recommendations on steps to decrease the dangers provided by intentional human threats:

• If there are hazards (or faults, weaknesses), employ verification procedures to reduce the risk of exposure.

• If a hazard may be exploited, use horizontal protection, structural design, and control mechanisms to reduce or eliminate the danger.

• Use defences to lessen the attacker’s incentive by increasing the invader’s cost if the invader’s cost is less than the possible profit.

• If the forfeiture is too unembellished, apply strategy concepts, architectural designs, and technological and non-technical protection to reduce the chance of outbreak and hence the risk of forfeiture.

With the concession of the third-party article, the technique indicated above also works to limit the danger of natural or unexpected hazards.

Analysis:

Cost-Benefit Analysis:

• In order to allocate resources and implement cost-effective controls, organisations should do a cost-benefit analysis on each proposed control. Organizations should do a cost-benefit analysis of each proposed control after identifying all prospective controls and analysing their feasibility and efficacy. This will help them choose which controls are essential and suitable for their circumstances. (Verbeek, J. 2017).

Cost and profit scrutiny may be done using either quality or pricing. Its goal is to show that the expense of implementing controls may be compensated by a decrease in risk. For example, a company might not want to devote $1,000 on management to decrease a risk of $200. The following are included in the cost-benefit scrutiny of the projected new or upgraded controls:

  • Evaluating the impression of new or better controls
  • Calculating the bearing of not using new or improved controls.
  • Calculating implementation costs. These may comprise, but are not partial to, the following:
  • Purchase of computer hardware and computer software reduces performance when system recital or performance is reduced to increase security.
  • The expense of recruiting more personnel to carry out the planned policies, processes, or resources.
  • Training expenses

Weighing operational costs and benefits in contradiction of system and critical information to establish the administration’s value in executing the new controls, given the cost and limited effect.

The organisation will requirement to weigh regulatory reimbursements against the organization’s ability to retain an acceptable status. There is a cost to employing the necessary control, and there is a penalty to not utilising it. Organizations may decide whether it is possible to stop your usage by relating the consequence of non-use to policy control. The administration’s management must define what establishes an satisfactory degree of equipment risk. After the company has defined a range of risk levels, the control effect may be examined and controls added or withdrawn. The scope of new controls will vary depending on the organisation; nonetheless, the following guidelines apply to deciding the application of new controls:

• If control can minimise risk beyond what is necessary, determine if a less expensive substitute exists.

• If the control is more expensive than the risk decrease delivered, seek another solution.

• If the control does not lower risk adequately, seek for more controls or other measures.

• Use the control if it offers appropriate and cost-effective mitigation.

Often, the costs of establishing control outweigh the disadvantages of not executing it. As a result, top executives play an important role in choices about the deployment of control mechanisms to safeguard organisational policy.

The price of applying a control is frequently more perceptible than the cost of not executing it. As a result, senior organization is crucial in choices about the execution of control procedures to defend the organisational work.

Residual Risk

Administrations can assess the degree of risk lessening created by new or improved controls in terms of reducing threat likelihood or effect, two factors that characterise the equal of risk to the corporate undertaking. (Menoni, S. 2018).

Implementing new or enhanced controls can lower the risk by:

 • Eliminating other system vulnerabilities (errors and vulnerabilities), lowering the number of possible sources of danger / weakness

In addition to targeted controls to reduce power and source-critical, for example, the department decides that the cost of installing and maintaining additional standalone PC software to keep its sensitive files is not justified, but that administrative and physical controls to make physical access to that PC more difficult should be used.

• Lessen the severity of the negative impact

The relationship between control execution and outstanding risk is realistically presented in the figure-

The risk that remains after the execution of additional or improved controls is referred to as remaining risk. In reality, there is no such thing as a risk-free IT programme, and not all risk-reduction strategies are designed to discourse or lower the risk equal to zero. (Goh, M. 2017).

As a result, the negative consequences of a security event may be designated as the forfeiture or destruction of any, or an amalgamation of any, of the three security purposes: integrity, access, and concealment. The table below offers a quick explanation of each protective policy and the result of noncompliance:

Loss of Integrity. The idea of system integrity and information denotes to the fortification of data against inappropriate correction. When unauthorised alterations are made to data or IT systems by purposeful or erroneous activities, integrity is lost. Constant procedure of a corrupt arrangement or corrupt information may outcome in mistakes, frauds, or inaccurate decisions if system loss or data integrity are not repaired. Furthermore, a defilement of truthfulness might be the initial step toward a efficacious attack on system access or concealment. For all of these explanations, loss of veracity affects the IT system’s reliability.

Loss of Availability. If the most critical IT system in a policy is unavailable to its end users, the organisational policy may be jeopardised. For example, a loss of system performance and efficiency may result in a loss of productivity time, prohibiting end users from carrying out their activities in support of an organisational aim. (Stewart, M. G. 2019).

Loss of Confidentiality. The protection of information from unauthorised disclosure is referred to as system and confidentiality. The consequences of unlawful exposure of secret information can range from compromising national security to disclosing data protected by the Privacy Act. Unauthorized, unexpected, or unintended disclosure may result in public shame, embarrassment, or legal action against the organisation.

Conclusion:

Many firms will continue to extend and upgrade their networks, modify their components, and replace or update their software packages with fresher versions. Additionally, personnel turnover is inevitable, and safety regulations are likely to evolve over time.

As a result of these expansions, new risks will emerge, and previously decreased dangers may become a source of worry. As a result, risk management is a continual and emerging activity. This section stresses best practises and the need of ongoing risk assessment and evaluation, as well as the aspects that will lead to an effective risk administration system.

Good Security Practice

In government employment, the risk valuation procedure is often performed atleast every single three years, as required by OMB Circular A-130. Disaster risk administration, alternatively, should be adopted and combined into the SDLC for IT systems not for the reason that it is needed by law or guideline, but for the reason that it is a decent practise that provisions the administration’s or policy’s business purposes.

There should be a particular plan for testing and mitigation of equipment, but the procedure should also be flexible adequate to allow for alterations as needed, such as large vicissitudes in the IT system and dispensation area induced by new regulations and technologies.

Keys For Success

It will be dependent on a efficacious risk administration system:

(1) senior management obligation;

(2) full sustenance and contribution of the IT line-up;

(3) the capacity of the risk valuation team, which must be able to put on a specific risk valuation approach and plan, identify policy risks, and provide affordable protections that meet the needs of the organisation; and

(4) the consciousness and collaboration of associates of the user communal, who must survey measures and guidelines.

(5) Ongoing testing and risk evaluation of information technology-related equipment.

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