Things To Consider For Internal Security Auditing

An internal security auditing can create a difference in the information security control environment of an organization

. While good governance of security auditing can identify all the potential threat areas inside an enterprise network, a poorly organized and managed audit can result in a blunder. Compromises related to network intrusion and phishing could be made due to mis-managed audit which eventually affects the development in business.

Auditing helps in damage control as well as in reducing the cost associated in recovery activites after the network has been compromised. In order to minimize the attacks on the internetwork, certain policies and processes should be practiced so that the chances of intrusion can be reduced.

Absolute independence: An audit is about the fact-finding and not about the fault-finding inside the IT infrastructure. The concern of an effective audit is to find the facts which can bring serious business issues and impacts. This asks for the detailed analysis and thorough audit exercise to highlight void areas without any concern and obligations. An independently conducted exercise outputs more results and hence is more effective.

Understanding business requirements: Auditing should be commenced after obtaining the information related to the network requirements of a business and understanding the business objective. After the study has been done, relationship between the scope and objective of the audit and related business needs should be mapped and decisions should be made accordingly.

Support for third-party auditing: An outsourced auditing team, which is dedicatedly working on security audits, posseses the experience in various business verticals and auditing in dynamic working environment. Moreover, a third-party team performs an unbiased approach towards the activity. This improves the chances of finding out more faulty areas inside the architecture.

An auditing exercise should be woven around a set of pre-defined parameters which need to be reviewed. A compliance-based audit verfies and validates the effectiveness of various security policies and processes, documented and adopted by the organization. A risk-based approach on the other hand, concentrates more on the schedule of policies adoption and helps in enhancing the security parameters because of the continuous evolution of security measures.

A hybird of both the approaches is also deployed sometimes, depending upon the review criteria and requirements to be checked. Sampling of the auditing schedule also helps in improving the quality of reviewal by using different methodologies like random sampling & statistical sampling. It enhances the possibility of finding out the faults inside a network which eventually improves network security.

by: christa joe

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