A digital certificate is a document that contains the public key and the identity of the owner of the public key, and is signed by a trusted third party called a certificate authority (CA)1. A digital certificate can be used to ensure the message reaches the intended recipient without alteration, by using the following steps2:
The sender encrypts the message with the recipient's public key, which can only be decrypted by the recipient' s private key. This ensures the confidentiality of the message, as only the intended recipient can read it.
The sender signs the message with their own private key, which can be verified by anyone who has their public key. This ensures the integrity and authenticity of the message, as it proves that the message has not been tampered with and that it comes from the sender.
The sender attaches their digital certificate to the message, which contains their public key and their identity, and is signed by a CA. This ensures the validity and trustworthiness of the sender's public key and identity, as it confirms that they have been verified by a CA.
The recipient receives the message and the digital certificate, and verifies the signature of the CA on the digital certificate. This ensures that the digital certificate is genuine and has not been forged or revoked.
The recipient uses the public key from the digital certificate to verify the signature of the sender on the message. This ensures that the message has not been altered and that it comes from the sender.
The recipient uses their own private key to decrypt the message. This ensures that they can read the message.
Therefore, adding a digital certificate is the best way to ensure the message reaches the intended recipient without alteration, as it provides encryption, digital signature, and certificate verification, which are the three main components of secure email communication3. Applying multi-factor authentication, adding a hash to the message, and adding a secret key are not the best ways to ensure the message reaches the intended recipient without alteration, as they do not provide all the components of secure email communication. Applying multi- factor authentication is a technique that requires the user to provide two or more pieces of evidence to prove their identity, such as a password, a code, or a biometric factor4. Multi-factor authentication can enhance the security of the email account, but it does not protect the message itselffrom being intercepted, modified, or impersonated. Adding a hash to the message is a technique that involves applying a mathematical function to the message to generate a fixed-length value, called a hash or a digest, that uniquely represents the message5.
A hash can be used to verify the integrity of the message, as any change in the message will result in a different hash. However, ahash does not provide confidentiality or authenticity of the message, as it does not encrypt themessage or identify the sender. Adding a secret key is a technique that involves using a single key, known only to the sender and the recipient, to encrypt and decrypt the message6. A secret key can provide confidentiality of the message, as only the sender and the recipient can read it. However, a secret key does not provide integrity or authenticity of the message, as it does not prevent the message from being altered or spoofed. Moreover, a secret key requires a secure way of exchanging the key between the sender and the recipient, which may not be feasible or reliable over email. References = 1: What is a digital certificate? | Norton2: How to Send Secure Emails in 2023 | A Guide to Secure Email - ProPrivacy3: Secure Email: A Complete Guide for 2023 - StartMail4: What is Multi-Factor Authentication (MFA)? | Duo Security5: What is a Hash Function? | Definition and FAQs6: [What is Symmetric Encryption? | Definition and FAQs]

The greatest concern for the risk practitioner when a big data project has resulted in the creation of an application used to support important investment decisions is the data quality. Data quality is the degree to which the data is accurate, complete, consistent, reliable, relevant, and timely. Data quality is essential for the success of any big data project, as it affects the validity and reliability of the analysis and the outcomes. Poor data quality could lead to erroneous or misleading results, which could have negative consequences for the investment decisions and the organization's performance and reputation. The other options are not as concerning as the data quality, although they may also pose some challenges or risks for the big data project.
Maintenance costs, data redundancy, and system integration are all factors that could affect the efficiency and effectiveness of the big data project, but they do not directly affect the accuracy and reliability of the analysis and the outcomes. References = Risk and Information Systems Control Study Manual, Chapter 3, Section
3.3.1, page 3-20.

The PRIMARY objective of the board of directors periodically reviewing the risk profile is to help ensure that the risk strategy is appropriate, because the risk strategy defines the enterprise's risk appetite, tolerance, and objectives, and guides the risk management process and activities. The board of directors should review the risk profile to ensure that it reflects the current internal and external environment, and that it aligns with the enterprise's strategy and goals. The other options are not the primary objective, because:
Option B: KRIs and KPIs are aligned is a desirable outcome of the risk strategy, but not the primary objective of the board of directors reviewing the risk profile. KRIs and KPIs are indicators that measure and monitor the risk exposure and performance of the enterprise, respectively, and they should be consistent with the risk strategy and objectives.
Option C: Performance of controls is adequate is a result of the risk response, but not the primary objective of the board of directors reviewing the risk profile. Performance of controls is the degree to which the controls are effective and efficient in mitigating the risks, and it should be evaluated and reported by the risk management function and the internal audit function.
Option D: The risk monitoring process has been established is a prerequisite for the risk profile, but not the primary objective of the board of directors reviewing the risk profile. The risk monitoring process is the process of tracking and reporting the risk status and performance, and it should be implemented and executed by the risk management function and the business process owners. References = Risk and Information Systems Control Study Manual, 7th Edition, ISACA, 2020, p. 119.

Conducting root cause analyses for risk events is the first recommendation that a risk practitioner should make when an increasing trend of risk events and subsequent losses has been identified, as this helps to identify the underlying causes and sources of the risk events, and to determine the appropriate actions to address them.
Root cause analysis is a systematic process of collecting and analyzing data, finding the root causes, and implementing solutions to prevent recurrence or reduce the impact of the risk events. Educating personnel on risk mitigation strategies, integrating the risk event and incident management processes, and implementing controls to prevent future risk events are not the first recommendations, but rather the possible outcomes or actions of conducting root cause analyses for risk events. References = CRISC Certified in Risk and Information Systems Control - Question208; ISACA Certified in Risk and Information Systems Control (CRISC) Certification Exam Question and Answers, question 208.

* Risk responses are the actions or strategies that are taken to address the risks that may affect the organization's objectives, performance, or value creation12.
* The most effective way to increase the likelihood that risk responses will be implemented is to assign ownership, which is the process of identifying and appointing the individuals or groups who are responsible and accountable for the execution and monitoring of the risk responses34.
* Assigning ownership is the most effective way because it ensures the clarity and commitment of the roles and responsibilities for the risk responses, and avoids the confusion or ambiguity that may arise from the lack of ownership34.
* Assigning ownership is also the most effective way because it enhances the communication and collaboration among the stakeholders involved in the risk responses, and provides the feedback and input that are necessary for the improvement and optimization of the risk responses34.
* The other options are not the most effective way, but rather possible steps or tools that may support or complement the assignment of ownership. For example:
* Creating an action plan is a step that involves defining and documenting the specific tasks, resources, timelines, and deliverables for the risk responses34. However, this step is not the most effective way because it does not guarantee the implementation of the risk responses, especially if there is no clear or agreed ownership for the action plan34.
* Reviewing progress reports is a tool that involves collecting and analyzing the information and data on the status and performance of the risk responses, and identifying the issues or gaps that need to be addressed34. However, this tool is not the most effective way because it does not ensure the implementation of the risk responses, especially if there is no ownership for the progress reports or the corrective actions34.
* Performing regular audits is a tool that involves conducting an independent and objective assessment of the adequacy and effectiveness of the risk responses, and providing the findings and recommendations for improvement56. However, this tool is not the most effective way because it does not ensure the implementation of the risk responses, especially if there is no ownership for the audit results or the follow-up actions56. References =
* 1: Risk IT Framework, ISACA, 2009
* 2: IT Risk Management Framework, University of Toronto, 2017
* 3: Risk Response Plan in Project Management: Key Strategies & Tips1
* 4: ProjectManagement.com - How to Implement Risk Responses2
* 5: IT Audit and Assurance Standards, ISACA, 2014
* 6: IT Audit and Assurance Guidelines, ISACA, 2014