Fraud Risk Assessments: A CFO’s Guide to Spotting and Preventing Fraud Early in Nigeria

Fraud destroys businesses. Slowly at first. Then all at once.

A ghost employee collects salary for three years. A procurement officer colludes with a fake vendor. A finance staff member diverts customer payments.

By the time you notice, millions are gone.

As a CFO, you cannot afford to wait for the whistleblower call or the audit exception. You need a system that spots fraud early. Before the damage becomes irreversible.

A fraud risk assessment is that system.

Let me walk you through what it is, why it matters more than ever in 2026, and how to build one that actually protects your organisation.

The fraud landscape in Nigeria: why CFOs cannot afford to wait

Nigerian businesses face serious fraud exposure. Global surveys from KPMG, PwC, and the EFCC all point to the same reality. Fraud is widely underreported, underprosecuted, and chronically underprevented.

The most common fraud types in Nigeria include procurement and vendor fraud, payroll fraud and ghost workers, financial statement manipulation, asset misappropriation, cybercrime and business email compromise, and insider collusion with external parties.

Public sector institutions, financial services firms, oil and gas companies, and fast-moving consumer goods businesses are the highest risk sectors.

The Association of Certified Fraud Examiners estimates a median loss of 5% of annual organisational revenue per fraud scheme. That is one out of every twenty naira you earn.

Beyond direct financial losses, fraud causes reputational damage, regulatory sanctions, loss of investor confidence, and in some cases, existential financial distress. Fraud is not a compliance matter. It is a strategic risk that belongs at the top of every CFO’s agenda.

What is a fraud risk assessment?

A fraud risk assessment is a structured, systematic process through which an organisation identifies the fraud risks it faces, evaluates the likelihood and potential impact of each risk, assesses the adequacy of existing controls, and prioritises areas that need enhanced controls or targeted investigation.

Unlike a general internal audit, a fraud risk assessment is designed to think like a fraudster. It anticipates how, where, and by whom fraud could be committed. It stresses whether current controls would catch it before significant harm is done.

The core components of a fraud risk assessment

A fraud risk assessment is only as strong as the methodology behind it. Let me break down the key components.

Fraud risk identification.

Build a comprehensive inventory of fraud risks specific to your organisation, industry, and operating environment. This is not a generic checklist exercise.

Map fraud risks to specific business processes, departments, transaction types, and individual roles. For a Nigerian manufacturing company, this might mean identifying collusion risk between procurement officers and raw material suppliers. For a bank, fictitious loan creation or insider access to customer accounts.

Use structured process walkthroughs, interviews with key staff at multiple levels, analysis of historical incidents, industry fraud data, and input from internal audit, compliance, and finance teams.

Fraud risk likelihood and impact assessment.

Assess each risk across two critical dimensions. Likelihood: how probable is it that this fraud could actually occur given existing controls? Impact: What would be the financial, reputational, regulatory, and operational consequences if it did?

This two-dimensional assessment allows you to prioritise resources toward the highest risk exposures. The output is typically a fraud risk heat map showing where your organisation is most vulnerable.

Control assessment and gap analysis.

For every fraud risk identified, evaluate existing preventive and detective controls honestly and rigorously.

Preventive controls stop fraud from occurring. Segregation of duties. Dual authorisation requirements. Vendor due diligence. Access controls.

Detective controls identify fraud that has already taken place. Exception reporting. Data analytics. Reconciliation processes. Whistleblower hotlines.

The gap analysis reveals where controls are absent, where they exist on paper but do not function in practice, and where they could be circumvented by a determined insider. These gaps become your priority action items.

Residual risk prioritisation.

After mapping controls against each identified risk, assess the residual risk that remains. High residual risk areas require immediate management attention, enhanced controls, or targeted proactive investigations.

The prioritised residual risk register becomes the cornerstone of your fraud risk response and remediation plan.

Reporting and action planning.

A fraud risk assessment culminates in a clear, evidence-based report to the CFO, CEO, audit committee, and board. This report must translate technical risk findings into practical, owner-assigned recommendations with realistic timelines and measurable success criteria.

A report that sits in a drawer solves nothing. The test of a good fraud risk assessment is the quality and speed of the action it generates.

What is changing in fraud risk in 2025 and 2026

The fraud environment is evolving faster than most organisations can track. CFOs who stay ahead will be significantly better positioned to protect their organisations.

The ACFE’s 2024 Report to the Nations.

The median duration of fraud schemes before detection has increased to 14 months, up from 12 months in 2022. Fraudsters are operating inside organisations for longer before being caught, amplifying the financial damage.

Asset misappropriation remains the most common fraud type globally, representing 89% of all cases. Financial statement fraud causes the highest median loss per incident.

Most significantly, organisations that conducted proactive fraud risk assessments detected fraud materially faster and suffered substantially lower losses than those that had not.

AI-powered fraud detection is now accessible.

Until recently, AI-driven fraud detection was the preserve of large banks and multinationals with substantial technology budgets. In 2025, that changed.

Cloud-based fraud analytics platforms, including Kount, SAS Fraud Management, FICO Falcon, and DataVisor, significantly reduced their entry-level pricing. They are now genuinely accessible to mid-market Nigerian businesses.

These platforms use machine learning to detect unusual transaction patterns, flag anomalous vendor behaviours, and identify account compromise attempts in real time. Detection speed improves dramatically compared to traditional manual review.

Business email compromise is Nigeria’s fastest-growing corporate fraud type.

The Interpol Africa Cyberthreat Assessment Report identified Business Email Compromise as the fastest-growing corporate fraud threat across West Africa. Nigerian organisations are experiencing a dramatic increase in BEC incidents.

Fraudsters impersonate senior executives, suppliers, or finance staff via compromised or spoofed email accounts. They redirect legitimate payments to fraudulent bank accounts. These schemes often bypass financial controls entirely because they appear to be authorised instructions from legitimate sources.

CFOs must ensure payment verification protocols specifically address BEC risks. Mandatory out-of-band confirmation of any payment instruction changes is essential, regardless of how authoritative the email appears.

The EFCC’s expanded corporate enforcement focus.

The EFCC has signalled a significant expansion of its enforcement focus from individual prosecutions to corporate liability. In 2025, the Commission issued guidance making clear that organisations that fail to implement adequate fraud prevention frameworks may face corporate charges in addition to sanctions against individual officers.

A documented, regularly updated fraud risk assessment is no longer simply good governance practice. It is becoming an element of direct legal protection for Nigerian companies and their boards.

ESG reporting and fraud risk disclosure on NGX.

Nigerian companies listed on the Nigerian Exchange Group face growing pressure from institutional investors to publish credible ESG disclosures. Fraud risk management is emerging as a key governance metric within the G pillar.

International institutional investors and development finance institutions are increasingly asking specific questions about fraud risk frameworks, whistleblower policies, and anti-corruption programmes.

CFOs who can demonstrate a mature, documented fraud risk assessment process will hold a measurable competitive advantage in capital raising conversations.

Who should be involved in a fraud risk assessment?

Fraud does not respect departmental boundaries. Neither should your assessment process.

A robust fraud risk assessment is inherently cross-functional. The CFO provides leadership and sets the tone from the finance side. But the process requires structured participation from several functions.

Internal audit brings methodological independence and professional scepticism. Legal and compliance teams understand regulatory exposure and reporting obligations. Human resources identifies people-related risks like inadequate pre-employment screening, compensation grievances, or unusual staff behaviour patterns. IT and cybersecurity address technology-enabled fraud risks and system access vulnerabilities. Business unit heads bring deep operational knowledge of process weaknesses that finance and audit teams might not see.

Critically, the assessment must also examine risks posed by external parties. Vendors, contractors, agents, distributors, and customers. In Nigeria, collusion between internal employees and external third parties represents one of the most common and most difficult to detect fraud patterns, especially in procurement and logistics.

How often should a fraud risk assessment be conducted?

A fraud risk assessment completed once and shelved provides a dangerous false sense of security.

As a baseline, Nigerian organisations should conduct a comprehensive fraud risk assessment at minimum once per year, typically as part of the annual audit planning cycle.

However, several trigger events should prompt an interim reassessment outside the regular schedule. Mergers, acquisitions, or major restructuring. Launch of new business lines, products, or geographic expansions. Onboarding of high value new vendors or business partners. A detected fraud incident or credible whistleblower allegation. Material changes in the regulatory environment. Significant changes in technology or systems.

The ACFE recommends treating fraud risk assessments as living documents, continuously updated as the risk environment evolves, rather than periodic compliance exercises completed and forgotten until the following year.

Practical fraud prevention measures that flow from the assessment

An assessment without action is just documentation. The real value lies in what your organisation does with the findings.

Prevention measures.

Strengthen segregation of duties in high-risk processes. Improve vendor due diligence and onboarding procedures. Implement mandatory dual authorisation for high-value transactions. Enhance pre-employment and periodic background screening across all sensitive roles. Conduct role-specific anti-fraud training that goes beyond generic awareness programmes.

Detection measures.

Deploy continuous transaction monitoring and exception reporting on key financial data sets. Establish or materially strengthen a confidential and independently managed whistleblower hotline. Conduct targeted data analytics on high-risk transaction populations like vendor payments, expense claims, and payroll. Introduce unannounced audit procedures in areas carrying the highest residual fraud risk.

In Nigeria, whistleblower hotlines remain critically underutilised across both private and public sectors. This is a major missed opportunity. Tips from employees, customers, and vendors are consistently the number one fraud detection method globally, ahead of internal audit, management review, and data analytics combined.

Where to start tomorrow

Do not try to assess everything at once.

Start with your highest risk processes. Procurement, payroll, cash handling, and vendor management are good places to begin.

Gather a cross-functional team. Finance, internal audit, legal, HR, IT, and operations.

Map your processes. Document how money moves through your organisation. Identify where controls exist and where they are missing.

Talk to your people. Fraud risk assessments require honest conversations with staff at all levels. Create psychological safety. Encourage reporting.

Document your findings. Create your fraud risk heat map. Prioritise your gaps.

Build your action plan. Assign owners. Set deadlines. Track progress.

Repeat annually. Fraud risks change as your business changes. Keep your assessment current.

Final word

Fraud is not a theoretical risk. It is happening right now in Nigerian organisations. Maybe even in yours.

A fraud risk assessment is your best defence. It identifies your vulnerabilities before fraudsters exploit them. It strengthens controls where they are weakest. It demonstrates to your board, investors, and regulators that you take governance seriously.

The cost of a fraud risk assessment is a fraction of the cost of one undetected fraud scheme. The median fraud loss is 5% of annual revenue. For a ₦1 billion company, that is ₦50 million down the drain.

Can you afford not to assess your risk?

CALL TO ACTION

Is Your Organisation Truly Protected Against Fraud?

Most Nigerian CFOs only discover critical fraud gaps at the worst possible moment. After a scheme has already caused serious financial and reputational damage.

A proactive, structured fraud risk assessment changes that equation entirely. It gives you the intelligence to act before fraud strikes. The documentation to demonstrate sound governance to your board, investors, and regulators. The practical roadmap to build an organisation that is genuinely difficult to defraud.

At Stonehill Research, we specialise in helping Nigerian CFOs and finance leaders design, conduct, and act on fraud risk assessments that are rigorous, evidence-based, and built for the realities of the Nigerian operating environment. We do not produce reports that gather dust. We produce findings that drive action.

Our Fraud Risk Services Include

Fraud Risk Assessments and Control Gap Analysis. Anti-Fraud Framework Design and Implementation. Whistleblower Programme Advisory and Setup. Fraud Investigation Support. Anti-Fraud Training for Finance and Audit Teams. CFO Advisory on Fraud Governance and Board Reporting.

Why Choose Stonehill Research?

Nigerian Fraud Expertise. Deep understanding of local fraud patterns, regulatory environment, and business culture.

Proven Methodology. ACFE-aligned fraud risk assessment framework adapted for Nigerian organisations.

Practical Action Focus. We do not just identify gaps. We help you fix them.

Independent Perspective. External assessors see what internal teams miss.

Confidential and Professional. Highest standards of discretion and professional ethics.

Take the Next Step

The cost of a fraud risk assessment is a fraction of the cost of one undetected fraud scheme. Contact us today and let us help you stay ahead of the risk.

📧 Email: info@stonehillresearch.com
📞 Phone: +234 802 320 0801
📍 Address: 5, Ishola Bello Close, Off Iyalla Street, Alausa, Ikeja, Lagos

Schedule a Confidential Consultation. Discuss your organisation’s fraud risk exposure and learn how a structured assessment can protect your bottom line.

Stonehill Research – Your Partner in Fraud Risk Management and Corporate Governance Excellence.

REFERENCES

Association of Certified Fraud Examiners (ACFE). Fraud Risk Management Guide. https://www.acfe.com/fraud-resources/fraud-risk-management-guide

ACFE. Report to the Nations on Occupational Fraud and Abuse. https://www.acfe.com/report-to-the-nations

PwC. Global Economic Crime and Fraud Survey. https://www.pwc.com/gx/en/services/forensics/economic-crime-survey.html

Interpol. Africa Cyberthreat Assessment Report. https://www.interpol.int/en/Crimes/Cybercrime

Economic and Financial Crimes Commission (EFCC) Nigeria. https://www.efccnigeria.org

KPMG. Africa Fraud Barometer. https://www.kpmg.com/africa

Nigerian Exchange Group (NGX). ESG Disclosure Guidelines. https://www.ngxgroup.com

The Institute of Internal Auditors. International Standards for the Professional Practice of Internal Auditing. https://www.theiia.org/en/standards/