Unmasking the Villain - Detecting and Preventing AP Fraud

November 15, 2023

Preventing fraud in accounts payable is not an easy process. It requires a multifaceted approach that can address weaknesses in manual processes, vendor verification, staff awareness, invoice verification, visibility and bad practices. By utilising the time and resources to implement these strategies successfully, businesses can unmask the villain with vigilance and create a culture of fraud prevention that safeguards against AP fraud threats.    


Accounts Payable (AP) fraud is a dangerous villain that looms over businesses globally. Here, we will illuminate the critical vulnerabilities within the AP process and provide valuable insights into how to detect and prevent fraud, as well as how resistance to change from manual processes can lead to the adoption of bad practices and limited visibility.  


Manual Processes – A Vulnerability  

Manual AP processes involve various risks, such as human error, delays and limitless openings for fraudsters to exploit. Identifying these risks is the imperative first step toward a fraud-free workplace. After risks have been identified, investing in an automated solution can drastically reduce manual errors and boost AP process efficiency with the help of computerised workflows and fraud detection systems. Without the resolution of automation, the risks are limitless.  


Risks Associated with Manual Vendor Verification  

Exposure to Fraudulent Vendors  

The use of manual processes regularly involves a reliance on paper documents or unsecured digital records that can be easily stolen, manipulated and forged. Criminals can exploit these vulnerabilities to harm your business by creating fake vendor profiles or altering existing ones. Without comprehensive and capable verification methods, companies can easily unknowingly engage with fraudulent vendors, leading to theft, reputational damage and even legal complications.  

Duplicate Payments  

Duplicate payments can happen when invoices are not managed correctly. For example, an invoice may have been paid online, but a paper version of that same invoice has been found months later and paid again. This can create pressure on financial resources and create discrepancies in accounting data, leading to delays with auditing. Manual processes that lack real-time data tracking are much more at risk of these errors, which can result in exorbitant amounts of time and money being spent on reconciliation and recovery.  

Limited Scalability  

As businesses grow over time, there is an increase in the volume of transactions and invoices that need to be processed. Manual and paper-based processes can quickly become overwhelmingly large workloads that create instances of delayed approvals, inefficiencies and increased risks. Unfortunately, most businesses will increase FTE or skip critical checks such as vendor verification and banking detail checks to speed up the invoicing process, inevitably compromising integrity.  

Compliance and Regulatory issues  

Many businesses are aware of strict compliance and regulatory requirements set by state governments and industry regulatory bodies. Further raising the necessity of foolproof vendor verification. Manual processes may need help to keep up with the pace of evolving regulations, which could result in fines, legal actions, reputational damage and financial losses.  

Time and Resource Intensive  

Manual vendor verification processes are incredibly time-consuming and resource-intensive. Staff can end up spending the majority of their valuable hours cross-referencing information to validate vendor identities, diverting their attention from more pressing and strategic tasks.  


The Staff and The First Line of Defence  

Insider Threats  

Unfortunately, staff members can be the first line of defence or the accidental perpetrators of fraudulent activities. Fraudsters have learned how to mislead staff into giving confidential information to the wrong party, which can easily lead to breached security systems. It is crucial for businesses wanting to prioritise security to perform adequate background checks, strategy and ethics training to prevent insider threats. This can be done by investing in continuous employee training and cyber security awareness programs that can ensure employees are vigilant and well-informed about risks that are associated with accounts payable fraud. Cybercriminals often create imitation invoices that can very closely resemble legitimate ones. It is vital to ensure staff have comprehensive training to recognise suspicious invoice patterns.  

Verification protocols  

Another way to prevent insider threats is to have automated verification processes in place that are thoroughly implemented and can automatically process incoming invoices, including cross-referencing with previous purchase orders and contracts to prevent fraudulent payments seamlessly.  



Delegation of Authority Increased transparency  

Implementing an authority structure that requires authorisation for spending within the business prevents unnecessary and unmonitored payments that often are taken advantage of in fraudulent transactions. These delegations should be regularly reviewed and updated to comply with protocols. Systems that are also able to track how stakeholders tracked payments and approvals in real-time can create real-time and detailed audit trails of all AP transactions. These logs are then able to be regularly reviewed in order to identify any irregularities or unauthorised activities.  



Mitigating fraud within the accounts payable sector of a business necessitates a comprehensive strategy encompassing various layers of defence. This multifaceted approach aims to not only tackle vulnerabilities associated with manual processing but also to establish robust vendor verification procedures, enhance staff awareness through targeted training, rigorously verify invoices, manage permission to spend, and increase transparency.  


The complexity of today's financial landscape demands more than a singular, isolated solution. To safeguard the financial integrity of a company, organisations should consider an integrated approach that combines various elements, ensuring that no avenue for fraud goes unaddressed. By implementing a foolproof solution that seamlessly integrates these strategies, businesses can effectively unmask the villain of fraud and provide a shield of protection around their financial assets. This holistic approach helps instil confidence in stakeholders, maintain a trustworthy financial reputation, and ultimately bolster the overall stability of the organisation.

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