According to the PMBOK Guide, the risk owner is the person assigned the responsibility of monitoring the risk and implementing the risk response plan. The risk owner should be involved in the risk response execution and evaluation, and should communicate the results and outcomes to the relevant stakeholders. In the case of a data breach, the risk owner should coordinate a response with the risk manager and other parties involved, such as the security team, the legal team, the customer service team, and the senior management.
The risk owner should also report the status of the risk and the effectiveness of the response plan to the risk manager. The risk manager should oversee the risk response process and ensure that the risk is handled appropriately and in alignment with the project objectives and stakeholder expectations. References: = PMBOK Guide, 6th edition, pages 452-453; The Standard for Risk Management in Portfolios, Programs, and Projects, page 79.

Before deciding to hire an external vendor to accelerate the delivery plan, it's essential to assess the potential internal and external factors that could influence this decision. Conducting a SWOT analysis allows the project team to systematically evaluate:
Strengths: Internal capabilities that could support the decision.
Weaknesses: Internal limitations or challenges.
Opportunities: External factors the project could capitalize on.
Threats: External factors that could pose risks.
This comprehensive assessment provides a balanced perspective, enabling informed decision-making regarding the engagement of an external vendor.
PMI Risk Management Study Guide References:
The PMI-RMP Exam Content Outline lists SWOT analysis as a technique for assessing project risk complexity and identifying potential threats and opportunities, facilitating informed decision-making in project risk management.

According to the PMBOK Guide, one of the tools and techniques for the implement risk responses process is root cause analysis. Root cause analysis is a technique that focuses on identifying the fundamental reason for the occurrence of a problem or a risk. By conducting a root cause analysis, the risk owner can determine why the implemented measures were only partially successful and what caused the new unforeseen risk to emerge. This can help the risk owner to identify and implement more effective risk responses, as well as to update the risk register and the risk report with the new information1 . References: PMBOK Guide, 6th edition,pages 452-453, 474-4751; PMI-RMP Exam Content Outline, 2015, page 8.

The project manager should add the assumptions and constraints to the assumption log to track and analyze their impact on the project. The assumption log is a project document that records all project assumptions and constraints throughout the project life cycle. (Reference: PMBOK Guide, 6th Edition, p. 89) The project manager should add the assumptions and constraints to the assumption log, which is a project document that records the assumptions and constraints that affect the project scope, schedule, cost, and quality. The assumption log can help the project manager to identify and analyze the risks that may arise from the validity of the assumptions and the impact of the constraints. The assumption log can also be used as an input for the Identify Risks process, where the project manager can determine the risk impact of the assumptions and constraints and add them to the risk register accordingly. References: PMI, A Guide to the Project Management Body of Knowledge (PMBOKGuide), Sixth Edition, 2017, p. 38, 397.

Brainstorming is an effective information-gathering technique used during risk planning sessions to identify potential risks, opportunities, and responses. It encourages open dialogue among team members, fostering the generation of diverse ideas and perspectives. This collaborative approach ensures a comprehensive identification of risks, as participants build upon each other's insights, leading to a more robust risk management plan.
PMI Risk Management Study Guide References:
The PMI-RMP Exam Preparation Study Guide emphasizes the value of brainstorming in risk identification, noting that it "promotes the free flow of ideas, enabling teams to uncover a wide array of potential risks and responses."