Scope and Focus

The scope of this analysis is to identify and model risks associated with the implementation of a new cloud$-$based data management system for a healthcare organization. The focus is on the protection of sensitive patient data and ensuring the availability and integrity of the system.

Target

The target of this analysis is the new cloud$-$based data management system, which will be used by healthcare professionals to store and access sensitive patient data. The goals of the analysis are to ensure the confidentiality, integrity, and availability of the data, as well as to identify and mitigate any potential risks to the system.

Asset Diagram

The following asset diagram shows the relationships between the various assets involved in the system:

Asset Diagram

Unwanted Incidents, Threats, Vulnerabilities, and Threat Scenarios

Unwanted Incident: Unauthorized access to sensitive patient data

Threat: Weak passwords and lack of two$-$factor authentication

Vulnerability: Lack of user education and training

Threat Scenario: A hacker gains access to a healthcare professional's account by guessing their weak password

Unwanted Incident: Data breach due to insider threats

Threat: Disgruntled employees with access to sensitive data

Vulnerability: Lack of access controls and monitoring

Threat Scenario: A disgruntled employee intentionally leaks sensitive patient data

Unwanted Incident: System downtime due to hardware failure

Threat: Physical damage to servers or network equipment

Vulnerability: Lack of redundancy and failover mechanisms

Threat Scenario: A server fails due to a power outage, causing the system to go offline

Ranked List of Assets, Scale of Risks, Risk Function, and Risk Evaluation Metrics

Asset Scale of Risks Risk Function Risk Evaluation Metrics

Sensitive patient data High Confidentiality, Integrity, Availability Data breach, Unauthorized access, System downtime

Cloud$-$based data management system High Availability, Integrity, Confidentiality System downtime, Data breach, Unauthorized access

Healthcare professionals' accounts Medium Confidentiality, Integrity Unauthorized access, Data breach

Network infrastructure Medium Availability, Integrity System downtime, Data breach

Physical servers and equipment Low Availability System downtime

Threat Diagram

Threat Diagram

Risk Diagram

Risk Diagram

Risk Treatment Diagram

Risk Treatment Diagram

Risk Evaluation

Based on the risk diagram, the following risks have been identified as unacceptable and require further evaluation for treatment:

Unauthorized access to sensitive patient data

Data breach due to insider threats

System downtime due to hardware failure

These risks have been prioritized based on their potential impact and likelihood of occurrence. The healthcare organization should consider implementing the following risk treatments to mitigate these risks:

Implementing strong password policies and two$-$factor authentication for all user accounts

Implementing access controls and monitoring mechanisms to detect and prevent insider threats

Implementing redundancy and failover mechanisms to ensure the availability of the system in case of hardware failure

Final Answer

Based on the CORAS risk assessment methodology, the following risks have been identified and modeled for the new cloud$-$based data management system for the healthcare organization:

Unauthorized access to sensitive patient data

Data breach due to insider threats

System downtime due to hardware failure

These risks have been prioritized based on their potential impact and likelihood of occurrence. The healthcare organization should consider implementing the recommended risk treatments to mitigate these risks and ensure the confidentiality, integrity, and availability of the system and the sensitive patient data it contains.