Fraud Diamond
Definition
Wolfe and Hermanson's 2004 extension of the fraud triangle that adds capability as a fourth condition. The model holds that pressure, opportunity, and rationalisation are necessary but not sufficient: the individual must also have the position, knowledge, and personal traits to carry out the fraud.
- Authors
- Wolfe and Hermanson
- Year
- 2004
- Extends
- The fraud triangle (Cressey)
- Added element
- Capability
- Original three elements
- Pressure, opportunity, rationalisation
Common questions
Why did Wolfe and Hermanson think capability needed to be added to the fraud triangle?+
They argued that many people face pressure and see an opportunity, but only someone with the right position, technical knowledge, ego, and persuasive skill will actually recognise the opportunity and execute a scheme successfully. Capability explains why fraud clusters among individuals with authority and access rather than being evenly distributed.
How is capability assessed in a fraud investigation?+
Investigators look at the suspect's authority to override controls, technical understanding of the systems involved, confidence to handle the stress of ongoing deception, and ability to coerce or manage others into compliance or silence. This is usually assessed alongside, not instead of, evidence of pressure and opportunity.
Is the fraud diamond the only extension of the original fraud triangle?+
No. Other models have proposed additional elements such as arrogance or entitlement, sometimes called the fraud pentagon, building further on the diamond. The fraud triangle remains the most widely taught baseline, with the diamond and later models used to explain cases the triangle alone does not fully account for.
Related terms
- Non-Shareable Financial Problem
- Cressey's original term for the pressure element. The problem need not be objectively severe; what matters is that the perpetrator perceives it...
- Occupational Fraud
- The ACFE defines occupational fraud as the use of one's occupation for personal enrichment through the deliberate misuse or misapplication of the...
- Arrogance
- In the Pentagon model, the belief that normal rules do not apply to oneself. Arrogance replaces or bypasses rationalisation: the perpetrator does...
- Behavioural Red Flag
- An observable action or pattern that suggests elevated fraud risk by signalling pressure, rationalisation, arrogance, or capability. Examples include living beyond apparent...
- Capability
- In the fraud diamond, the personal attributes that allow an individual to execute a fraud: seniority and authority, knowledge of controls and...
- Control Environment
- The first and foundational component of the COSO framework. It encompasses the board's oversight, management's philosophy and operating style, organisational structure, commitment...
- Fraud Triangle
- A model, developed by criminologist Donald Cressey, proposing that occupational fraud requires three converging conditions: pressure (financial need or incentive), opportunity (a...
- Management Override
- The circumvention of established internal controls by members of senior management. A key fraud risk in any organisation because those who set...
- MICE Model
- A motivational taxonomy derived from counterintelligence practice: Money (financial gain or need), Ideology (loyalty, grievance, or belief), Coercion (external pressure or blackmail),...
- Pentagon Model
- An extension of the fraud diamond by Jonathan Marks (2011) that adds arrogance as a fifth element, describing individuals so confident in...
- Predication
- The reasonable basis that justifies opening a fraud examination. The ACFE holds that no examination should begin without adequate predication, meaning a...
- Rationalisation
- In the context of the fraud triangle, the mental justification a perpetrator uses to excuse fraudulent conduct. In interviewing, rationalisation is used...
Explained in these topics
- The Fraud Diamond and Other Extended Fraud Models
- The Fraud Triangle: Pressure, Opportunity, and RationalisationAn extension of the fraud triangle proposed by Wolfe and Hermanson (2004) that adds a fourth element, capability, to account for the observation that not all i...
- The Fraud Triangle and Cressey's ModelThe four-element extension of the fraud triangle proposed by Wolfe and Hermanson (2004), adding capability to pressure, opportunity, and rationalization. Capab...