ACFE Insights Blog

The Sleep Deprivation Cycle: Why "Newborn Fog" is a Fraudster's Best Friend

What happens when extreme fatigue weakens the mental safeguards we rely on every day? In this article, a Certified Fraud Examiner (CFE) connects the challenges of newborn parenting with fraud risk, exploring how sleep deprivation affects critical thinking, increases vulnerability to scams and makes it harder to recognize red flags.

By Caroline Fowler, CFE, MBA June 2026 Duration: 6-minute read
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In the world of fraud examination, the human element is commonly assumed to be a static variable. As trained experts, most would expect an examiner’s mindset of professional skepticism to remain continuously active. Yet, for many Certified Fraud Examiners (CFEs), a life-altering event such as the arrival of a newborn radically transforms that rational mindset and introduces a new emotional fragility centered on urgency, vulnerability and self-doubt.

This tenuous state, compounded by an environment of high stress and sleep deprivation, places caretakers in a “newborn fog.” This fog creates a state of cognitive susceptibility that provides fraudsters with increased opportunities to bypass an individual’s internal control framework.   

A Framework for Thinking 

To better understand why a fatigued brain is a fraudster’s paradise, fraud examiners can look to Daniel Kahneman’s framework of System 1 and System 2 thinking. System 1 is rapid, automatic and instinctive. System 2 is cautious, deliberate and logical.  

Fraud examination inherently depends on System 2 thinking because it requires professional skepticism, complex decisioning and logical reasoning. Yet for those in the newborn fog, System 2 requires a material biological expense. When a caretaker is operating under cognitive impairment, the brain enters “power-saving mode” making the individual more likely to accept the first plausible explanation to conserve mental energy. To a fraudster, this is the ultimate opportunity; they do not need to hack your computer if they can hack your biology.  

Fraud examiners functioning in the newborn fog may inadvertently approach their work under a “path of least resistance” premise to simply survive the day. This can result in increased susceptibility to targeted scams including: 

  • Erosion of Professional Skepticism: When an examiner is months into sleep deficit, the questioning mindset falters and can be replaced with automatic compliance. Even a seasoned professional might find themselves clicking on a phishing link or approving a request because their mental alarm system has been muffled by the fog of exhaustion. 
  • Weaponized Urgency: Caring for a newborn engenders a “fire drill” mindset, where every moment requires reaction to instantaneous problems to either prevent or alleviate meltdowns. Because a caregiver’s brain is immersed in chaos, they become a prime target for fraudsters using artificial urgency to bypass logic. When a scammer calls claiming there is an “immediate issue with payment,” the cognitively impaired brain may interpret this as an emergency requiring immediate resolution and react on impulse versus instinct.  
  • The Sympathy Trap: Many schemes rely on fraudsters building rapport with the intended victim. A fraud examiner that is vocal about their newborn struggles may be more susceptible to a vulnerable plea or predatory helpfulness. Scammers may use phrases such as, “I know you are swamped with the new baby, so I filled out the form and just need a quick signature.” The examiner’s diminished capacity may mistake social engineering for genuine empathy and bypass verification protocols to save time or reduce bandwidth required for survival mode. 

Case Studies on Fatigue and Cognitive Impairment 

The legal system has long recognized extreme fatigue as a state of diminished capacity that fundamentally alters human agency. Two cases highlight how sleep deprivation erodes the decision-making relied on to maintain professional skepticism.  Evidence shows that vulnerability during sleepless nights is a documented physiological reality, not a professional failing. 

In Garrett v. Lumpkin, inmate Michael Garrett sued under the eighth amendment, claiming a case of cruel and unusual punishment, as prisoners were allotted only three and a half hours for sleep each night. Though this was a civil rights case, the court recognized severe sleep deprivation as a denial of basic human rights. Garrett’s exhaustion parallels that of a newborn caretaker and underscores why a brain starved of restorative rest may be fundamentally compromised. 

The case of R. v. Parks surrounds sleepwalking. Kenneth Parks asserted innocence in this state because he lacked voluntary control over his actions. While an examiner is unlikely to commit a crime in their sleep, the case illustrates how diminished consciousness can affect judgement, reinforcing the idea that sleep deprivation can impair decision-making and weaken analytical safeguards.  

Steps to Combat Newborn Fog 

To mitigate the cognitive impairment experienced during the newborn fog, implementation of a simple but effective COSO framework is a strategic necessity and should consider the following: 

  • Risk Assessment: In a professional setting, fraud examiners identify areas of vulnerability and develop mitigation plans to minimize exposure to fraud. Before a newborn’s arrival, caretakers should apply this same due diligence to the household. By proactively identifying which devices, actions and time slots are most susceptible, guardians can shrink the available avenues of attack during future periods of cognitive impairment.   
  • Separation of Duties: Caretakers handling a 3:00 a.m. feeding should not be simultaneously making financial decisions or responding to any “urgent” notifications. During peak times of exhaustion, use a digital note or physical ledger — whichever option requires the least amount of mental investment to log such items. This prevents a fraudster from exploiting the gap between a tired brain and a rested caretaker’s actions. 
  • Physical Controls: Interjecting simple, manual actions into vulnerable processes, such as setting up multi-factor authentications or removing saved payment information, ensures that any choices made during moments of exhaustion do not create long-term damages. While adding extra steps to an already demanding schedule may feel overwhelming, it creates enough momentary pause for personal evaluation before any mid-panic decisions could be made. 
  • Internal Audit: Although adding tasks to an already chaotic environment may feel burdensome, scheduling periodic control reviews to audit banking transactions, unusual or urgent e-mails, and recently installed applications can minimize susceptibility to fraud. While in a frazzled state, caretakers may inadvertently click on a malicious link or register for a “free trial” of a phishing subscription. Embedding a retrospective monitoring process can catch anomalies that slip through the newborn fog.  

As a member of the ACFE, and now the mother of a three-month infant, I can attest that the newborn fog — not only that it exists but how it creates a mindset of exhaustion, urgency and vulnerability. Yet while giving myself the grace to be exhausted, I also refuse to let fatigue become an avenue for exploitation. Opportunities to embed vigilance and avoid pitfalls while navigating sleepless nights exist in both personal and professional environments. Be kind to yourself and continue to stay vigilant. 

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