Confidentiality of information is the property that information is not made available or disclosed to unauthorized individuals, entities, or processes. In other words, confidentiality ensures that only those who are authorized to access the information can do so. In the scenario, the confidentiality of information was compromised when the software company modified some files that contained sensitive information related to HealthGenic's patients. This modification resulted in the invasion of patients' privacy, which means that their personal and medical information was exposed to unauthorized parties. Therefore, the correct answer is B.

According to ISO/IEC 27001:2022, Annex A.7, the objective of human resource security is to ensure that employees and contractors understand their responsibilities and are suitable for the roles for which they are considered, and to reduce the risk of human error, theft, fraud, or misuse of facilities. The standard specifies eight controls in this domain, which are:
* A.7.1 Prior to employment: This control covers the screening, terms and conditions, and roles and responsibilities of employees and contractors before they are hired.
* A.7.2 During employment: This control covers the awareness, education, and training, disciplinary
* process, and management responsibilities of employees and contractors during their employment.
* A.7.3 Termination and change of employment: This control covers the return of assets, removal of access rights, and exit interviews of employees and contractors when they leave or change their roles.
The other controls in Annex A are related to other aspects of information security, such as organizational, physical, and technological controls. For example:
* A.9.2 User access management: This control covers the authentication and authorization of users to access information systems and services, based on their roles and responsibilities.
* A.11.1 Secure areas: This control covers the control of physical access to the equipment and information assets, such as locks, alarms, guards, etc.
* A.13.2 Information transfer: This control covers the protection of information during its transfer, such as encryption, digital signatures, secure protocols, etc.
Therefore, video cameras are not a preventive control related to the staff, but rather a physical control related to the equipment and assets. Video cameras can be used to monitor and record the activities of the staff, but they cannot prevent them from causing incidents. They can only help to detect and investigate incidents after they occur.
References: ISO/IEC 27001:2022, Information security, cybersecurity and privacy protection - Information security management systems - Requirements, Annex A; PECB ISO/IEC 27001 Lead Implementer Course, Module 8: Implementation of Information Security Controls.

According to the ISO/IEC 27001:2022 standard, a performance indicator is "a metric that provides information about the effectiveness or efficiency of an activity, process, system or organization" (section
3.35). A performance indicator should be measurable, relevant, achievable, realistic and time-bound (SMART). In this case, the percentage of employees who passed the exam is a performance indicator that measures the effectiveness of the information security awareness and training sessions. It shows how well the sessions achieved their intended learning outcomes and how well the employees understood the information security concepts and practices.