Threat Modeling A new medium-sized health care facility just opened and you are hired as the CIO. The CEO is somewhat technical and has tasked you with creating a threat model. The CEO needs to decide from 3 selected models but needs your recommendation. Review this week’s readings, conduct your own research, then choose a model to recommend with proper justifications. Items to include (at a minimum) are: You will research several threat models as it applies to the health care industry, summarize three models and choose one as a recommendation to the CEO in a summary with a model using UML Diagrams (Do not copy and paste images from the Internet). In your research paper, be sure to discuss the security risks and assign a label of low, medium or high risks and the CEO will make the determination to accept the risks or mitigate them. Your paper should meet the following requirements: Course Textbook: Chapter 8 Cagnazzo, M., Hertlein, M., Holz, T., & Pohlmann, N. (2018). Threat Modeling for Mobile Health Systesm. . Ruiz, N., Bargal, S.A., & Sclaroff, S. (2020). Disrupting DeepFakes: Adversarial Attacks Against Conditional Image Translation Networks and Facial Manipulation Systems. Purchase the answer to view it

Threat modeling is a crucial process in ensuring the security of a health care facility. It involves identifying potential threats, assessing their risks, and developing appropriate countermeasures. In this case, we will examine three threat models applicable to the health care industry and recommend one to the CEO.

Model 1: STRIDE

The STRIDE model, developed by Microsoft, is a widely recognized threat modeling method applicable to various industries, including health care. It focuses on six types of threats:

1. Spoofing: Unauthorized entities or systems impersonating legitimate ones.
2. Tampering: Unauthorized modification or alteration of data or systems.
3. Repudiation: Denying or disputing one’s actions.
4. Information disclosure: Unauthorized access or exposure of sensitive information.
5. Denial of service: Disrupting or limiting access to resources.
6. Elevation of privilege: Unauthorized escalation of user privileges.

Applying the STRIDE model to a health care facility, we can identify potential risks. For example, spoofing threats could result in unauthorized individuals accessing patient records, while tampering threats could lead to manipulation of medical data. Information disclosure threats may occur through security breaches, which could expose patients’ personal information.

Note that the STRIDE model does not explicitly assign risk levels. It provides a framework for identifying potential threats and vulnerabilities. However, through careful analysis, we can assign risk labels based on the likelihood and impact of each threat.

Model 2: OCTAVE Allegro

The OCTAVE Allegro model, developed by CERT, focuses on understanding the organization’s assets, potential threats, and vulnerabilities. It emphasizes the need for collaboration among stakeholders to prioritize risks and develop appropriate countermeasures. This model is particularly suitable for organizations that have limited resources and technical expertise.

Applying the OCTAVE Allegro model to a health care facility, we can identify critical assets, such as patient data, medical equipment, and the facility itself. Potential threats include unauthorized access to patient records, physical theft or damage to equipment, and natural disasters. By involving key stakeholders in the threat modeling process, the facility can effectively mitigate risks and prioritize security measures.

Model 3: DREAD

The DREAD model, developed by Microsoft, provides a framework for prioritizing risks based on five factors:

1. Damage potential: The potential impact of a threat on the organization.
2. Reproducibility: The ease of reproducing a threat.
3. Exploitability: The ease of exploiting a vulnerability.
4. Affected users: The number of users affected by a threat.
5. Discoverability: The ease of discovering a vulnerability.

Applying the DREAD model to a health care facility, we can assess the risks associated with different threats. For instance, a threat that could result in the compromise of patient data would have a high damage potential. However, the ease of reproducing and exploiting the threat, the number of affected users, and the discoverability of the vulnerability should also be considered when assigning risk labels.

In conclusion, after considering the STRIDE, OCTAVE Allegro, and DREAD models, we recommend the use of the STRIDE model for threat modeling in the health care facility. The STRIDE model’s comprehensive coverage of multiple threat types aligns well with the unique challenges faced by the health care industry. By applying the model and conducting a thorough analysis of potential risks, the CEO can make informed decisions regarding risk acceptance or mitigation. Additionally, the use of Unified Modeling Language (UML) diagrams will provide a visual representation of the threat model, aiding in communication and understanding across stakeholders.

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