Following a significant change to the underlying code of an application, it is MOST important for the information security manager to:
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A. B. C. D.A.
When a significant change is made to the underlying code of an application, it is important for the information security manager to take several steps to ensure that the application remains secure and reliable.
Out of the given options, the MOST important step for the information security manager is to update the risk assessment (option B).
Updating the risk assessment after a significant change allows the information security manager to identify any new or changed risks that may be introduced by the code change. This helps in determining whether the existing controls and mitigation strategies are still sufficient or whether additional measures need to be implemented to address the new or changed risks.
Informing senior management (option A) is also important but it is not the most important step. The information security manager should certainly keep senior management informed of any significant changes to the application and the associated risks, but this should be done as part of the regular reporting process.
Validating user acceptance testing (UAT) (option C) is also important but not as crucial as updating the risk assessment. UAT is a process used to test the application's usability and functionality, and it is important to ensure that it continues to function as expected after the code change. However, the UAT is not directly related to the security of the application.
Modifying key risk indicators (KRIs) (option D) is also important, but not as important as updating the risk assessment. KRIs are metrics used to measure the level of risk associated with a particular process or system, and they may need to be modified to reflect any new or changed risks. However, the information security manager should first update the risk assessment to identify any new or changed risks before modifying the KRIs.
In summary, after a significant change to the underlying code of an application, the MOST important step for the information security manager is to update the risk assessment to identify any new or changed risks that may have been introduced by the code change.