control, and governance
April 2009
Simplifying Segregation of Duties (continued)
IDENTIFYING SOD FRAUD RISKS
Steps 1 and 2 relate to the identification of fraud risks that could potentially result in material misstatements. These risks should not be specific to SOD. Instead, the auditor’s fraud risk library should capture the pertinent risks that could result in financial misstatement caused by asset misappropriation and intentional financial misstatement. Risks should be high-level in nature. A list of risks for a manufacturing organization may include (risks will vary by industry and company):
Fraudulent Financial Reporting
Misappropriation of Assets
Corruption
SOD controls do not meaningfully mitigate corruption risks related to conflicts of interest, bribery, illegal gratuities, or economic extortion. Corruption risks are often addressed by a company’s entity-level controls, including codes of conduct/ethics, whistleblower hotlines, and those charged with corporate governance such as the board of directors.
MAP BUSINESS PROCESS SOD CONFLICTS TO FRAUD RISKS
The next step in the risk assessment process is to map possible business process SOD conflicts to the pertinent fraud risks and subjectively prioritize the conflicts to determine the critical few risks that need to be specifically assessed. This exercise is the heart of the SOD risk assessment and is the most time consuming. The “SOD Conflict to Risk Assessment Template” below may facilitate this process.
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Process
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Sub-process
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Potential SOD conflict
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Fraud Risk Ref.
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SOD Risk Rating (H, M, L)
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Other Compensating Control Activities
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IDENTITY KEY SOD FRAUD RISKS
Using the results of the SOD risk assessment, cull the critical few SOD fraud risks that are not sufficiently mitigated by other control activities. Using the prioritization scale, these may be the higher-rated SOD conflicts. Document the critical SOD risks and the key control activities that are in place to address these risks. This list ultimately represents the organization’s simplified SOD control framework (see the “Key SOD Conflict Risk Template” below).
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Ref.
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Fraud Risk Ref.
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Required Segregation
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Related Control Activity
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Information System
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Audit documentation should stand on its own and reflect the rationale used to develop your conclusions. As such, memorializing your SOD risk assessment is an important last step in the risk assessment process. Format is less important than content — the documentation can be completed using whatever tool is available to your organization. The point is to record the rationale used to identify, prioritize, and disposition SOD fraud risks so that your team, your external auditor, or your regulator can clearly understand how key risks are identified and controlled.
This template in MS Word format may help auditors frame their risk assessment and document their supporting rationale.
IMPORTANCE OF IT GENERAL CONTROLS
SOD controls operate on a continuous basis and are often accomplished by the proper assignment of system responsibilities enabled by appropriate access rights and restrictions. Therefore, IT general controls (ITGCs) should be in place to support system access procedures. Applicable ITGCs should be evaluated for all financially significant information systems. Effective SOD is frequently undermined by weak ITGCs.
REAPING THE BENEFITS
Implementing the SOD risk assessment process may be time consuming upfront, but the investment pays off year-over-year in the form of reduced audit costs (internal and external) and an increased ability to focus more time on higher risk audit areas. For IT auditors in a traditional IT-focused position, this approach will also expand their understanding of the broader risks and controls in their organization. The key to a successful implementation of the SOD risk assessment is limiting the auditor’s focus to SOD risks that could potentially result in a material financial misstatement and are not mitigated by other control activities. So, put aside the “scorched earth” SOD assessment approach and consider adopting a targeted, risk-based approach.
Nick Stone, CISA, is the corporate audit manager for Cree Inc., based in Durham, N.C.
To comment on this article, e-mail the author at nick.stone@theiia.org.
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