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: Purchase the answer to view it Purchase the answer to view it Purchase the answer to view it

Threat modeling is a process used to identify potential threats and vulnerabilities in a system or organization. It helps in understanding the security risks and determining appropriate countermeasures. In the context of a new medium-sized health care facility, it is crucial to have a well-designed threat model to protect sensitive patient data and critical infrastructure.

In researching threat models that are applicable to the health care industry, three models stand out: STRIDE, DREAD, and OCTAVE Allegro. Each of these models has its strengths and weaknesses, but one needs to be selected as a recommendation to the CEO.

The STRIDE model, introduced by Microsoft, focuses on six categories of threats: Spoofing, Tampering, Repudiation, Information disclosure, Denial of Service, and Elevation of privilege. This model provides a comprehensive framework for analyzing potential threats and can be applied to various systems. When assessing security risks using the STRIDE model, potential threats are evaluated based on their severity, with a label of low, medium, or high risks assigned. This allows the CEO to prioritize the mitigations needed based on the severity of the threats.

The DREAD model, on the other hand, emphasizes five attributes of a threat: Damage potential, Reproducibility, Exploitability, Affected users, and Discoverability. This model assesses the impact of threats in terms of business value and helps in prioritizing security measures accordingly. By assigning a numerical value to each attribute, the DREAD model provides a quantitative approach to threat modeling. This can be beneficial for the CEO in making informed decisions regarding risk acceptance or mitigation strategies.

The OCTAVE Allegro model, developed by Carnegie Mellon University, takes a different approach by focusing on operational risks and business impact analysis. It involves identifying critical assets, vulnerabilities, and potential threats, as well as assessing the impact of those threats on business operations. This model encourages a holistic view of security and can provide valuable insights into the overall risk posture of the health care facility.

After evaluating these three models, I recommend using the STRIDE model for threat modeling in the new health care facility. This model offers a comprehensive and systematic approach to identifying and assessing security risks. By utilizing UML diagrams to map out potential threats and their severity, the CEO can gain a clear understanding of the vulnerabilities and prioritize mitigations accordingly. Furthermore, the label of low, medium, or high risks assigned to each threat will aid the CEO in making informed decisions about accepting or mitigating the identified risks.

In conclusion, the STRIDE model is recommended as a threat modeling approach for the new health care facility. Its comprehensive framework and ability to assess the severity of threats make it a valuable tool for identifying and prioritizing security measures. By utilizing UML diagrams, the CEO can visualize the potential threats and make informed decisions regarding risk acceptance or mitigation.