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Chapter 5 Information Systems Management

Introduction

Today's world is complex. Organizational environment is becoming increasingly complicated with the integration of various technologies to provide better business delivery. While one's need of effective and efficient delivery is

fulfilled through the means of new technologies, such as internet, video, audio, business presentations, and business meetings, interplaying with each other, the other need requires more focus and strengthening, that is, information security. Businesses have to protect the confidentiality, and the integrity of business information while making their systems available for continued business. A few minutes of down time of an e-commerce business site can lead

to a significant amount of missed business or switching over of the business to a competitive supplier. A breach of confidentiality or integrity can lead to reputation loss, huge penalties, or significant revenue loss. To ensure information security, we need to act proactively.

When pro-activeness does not stop the breaches, we need to react effectively and efficiently and when breaches cannot be avoided we need to recover the businesses as fast as possible to provide continued services to the customers. Risk Management when applied in the right spirit, with the deployment of the right methodology, with the involvement of the right people, with the application of the right thinking, and with the execution of the actions effectively, can provide a reasonably good proactive approach to ensure that there is a high chance of avoiding information security breaches or incidents. In spite of being proactive, we cannot be assured that the security breaches cannot happen, as this evolving world provides a lot of opportunities and ways to breach the system.

Incident response provides a reactive method to ensure that the breaches are handled, contained, and recovered from effectively. In spite of effective risk management and incident response systems in place, you cannot still be assured of continuity of business or speedy recovery when the organization is affected by severe security breaches or disasters.

Hence the need for effective disaster recovery and business continuity systems to be put in place which is again a proactive as well as a reactive system to ensure that the business can still continue in spite of disasters or severe

security incidents when there is high probability of speedy recovery. Most of the businesses may go out of business or may lose a significant number of customers if they are not able to recover within a reasonable time frame. Similarly, some of the businesses cannot sustain a short period of lack of availability of systems as some of their business is highly critical and needs to be continued at any cost even at a reduced level of activity / volume.

An effective risk management approach supported by an effective and efficient incident response, supported by an effective and efficient disaster recovery and business continuity system can ensure that the businesses are able to sustain and provide continued services to their clients in spite of serious security breaches or disasters.

Unfortunately, there are hundreds of theories proposed by the experts and varied practices employed by various organizations with respect to risk management, incident response, disaster recovery, and business continuity. The definition of each of these words, from incident to disaster to recovery to continuity varies from theory to theory.

In order not to confuse our readers with too many theories and too many definitions we are providing here simple definitions in simple terms with respect to each of these as well as a simple and practical way of handling each of these, which in our view is suitable to most of the organizations in this world. Further, each of the aspects like Risk Management, Incident Response, and Business Continuity Planning can be strongly supported or advocated through a policy driving the same with clear commitment from top management. However, as we have seen, such policies are merely put in place either because of the requirement of a standard or because of some customer insistence without much thinking and most of the time not revisited for years and are not referred to by the organizational personnel and losing the requisite sanctity. Hence, we have not focused in this chapter much on the policies except with regard to Incident Response Policy which we have included here as guidance.

 
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