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Risk Responses

For each pair of threat and vulnerability, the calculated risk exposure is compared with the risk exposure considered acceptable to the organization (i.e., acceptable risk exposure). Where the risk exposure is less than the acceptable risk exposure, the risks are normally accepted by the organization and no further action is taken.

Acceptable risk exposure is decided by the organization as per its risk assessment methodology. Normally, this is the value of risk exposure below which the organization perceives the risks need not be focused on as the risks are very low and not worth pursuing.

There may be some other risks that the organizational management may want to consciously accept, such as the organization may allow mobile phones with cameras to be brought into the organization even though there is a risk that the cameras may be misused. The risk exposure in this case may be more than the acceptable risk exposure value. But, the organization may want to accept the risk because of its belief in the employees, considering other positive uses of mobile phones, not to demotivate the employees. Such practices of accepting the risk or not accepting the risk based on a specific context differ widely from organization to organization. As we have seen, some organizations may be very conservative in accepting the risks whereas other organizations may be relatively liberal in this regard when it particularly relates to inconveniencing the employees.

If the risk exposure is more than the acceptable risk exposure value then either the risk has to be avoided by mistake proofing (i.e., by implementing such measures that eliminate the possibility of such a risk occurring at all, such as if there is an unused entry or exit – mistake proofing is done by locking and sealing it permanently), the risk has to be transferred to others, or the risk has to be mitigated. Some of the possibilities of the transference of risk

is to take up insurance for the risk of loss from fire or transference of risk of ineffectiveness or inefficiency through outsourcing of the work to the experts in that area. However, transference of risk is not possible in most of the cases.

Where the risks are not possible to be either avoided or to be transferred then they need to be mitigated.

Mitigation is carried out by determining additional controls to be implemented. These controls may be awareness training, or may be implementation of a tool to monitor and provide alerts so that timely actions can be taken, or may be implementation of methods and techniques like encryption, or may be implementation of a security certificate

for the URL, or may be introduction of additional validations and / or exception flows in the application software, or implementation of better processes. The additional controls implemented should be such that they have either the capability to reduce the probability of occurrence or reduce the impact or increase the probability of detection or a combination of these. These additional controls or actions implemented should have to be assigned in such a way that there is high probability that the risk exposure is reduced below the acceptable value of risk subsequent to the implementation of the additional controls. All the additional controls to be implemented including the risk avoidance and risk transfer actions have to be assigned to relevant owners for effective actions.

Perceived risk exposure post implementation of additional controls should be collated against the existing risk to understand whether the additional controls are likely to bring the risk below the acceptable risk exposure value. Where it is perceived that the additional controls are unlikely to reduce the risk exposure below the acceptable value, the risks are to be brought to the attention of senior management of the organization and approval has to be obtained for bearing the residual risk.

Execution of the Risk Treatment Plans

The risk treatment plans (actions on account of earlier steps) are assigned through an Excel sheet or organizational action tracking tool to the respective owners and are tracked through the same on a regular basis. It is essential that the requisite focus and attention is provided by the management to ensure that these actions are invariably taken. Otherwise, the entire risk management exercise will be futile. Risk owners not only execute the necessary actions, but also ensure that the necessary processes to implement them effectively are defined and everybody (as relevant and required) is trained on those processes. Awareness of the risks and the actions required to be taken by all (as relevant and required) are also made known to everybody. The assigned action owners, upon implementation of the actions, check for the revised probability of occurrence, revised impact rating, and revised rate of detection. Where the risk exposure upon effective implementation of controls has not led to lowering the risk exposure below the acceptable risk value, then additional controls have to be implemented. Management has to be kept informed of the necessity and implementation of such actions so that requisite resources are deployed and the support is accorded for their effective implementation.

The Importance of Conducting a Periodic Risk Assessment

The organizational risk scenario changes when the business changes, the infrastructure changes, the technology deployed changes, and the competence of the personnel changes. These changes cannot be ignored, as these have the potential to impact the effectiveness of the controls already implemented and change the earlier risk profile of the organization. Whenever such significant changes are carried out by the organization or on a periodical basis (ideally on a six month to maximum of annual basis), re-risk assessment has to be carried out across the organization, and additional controls as required have to be determined and implemented. Proactive approach in this regard ensures that the effectiveness of the controls is maintained.

Figure 5-2 shows detail from a template that may be used for a risk assessment.

Figure 5-2. Risk Assessment Template (detail)

 
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