Anyone can commit fraud, but today many large-scale scams are led by criminal organizations that use layered psychological techniques to draw in vulnerable victims. “It’s not a mom-and-pop operation,” said Hanoch. “It’s organized crime, often led by big players in the field and terrorist organizations.” Federal agencies such as the U.S. Department of Treasuryopens in new window and the FBI have reported extensively that terrorist organizations often fund their operations through criminal activity that includes credit card and check fraud. Compounding the issue, technology “makes it easier for fraudsters to operate at scale,” said Christopher Chabris, PhD, a professor and the director of decision sciences at the Geisinger Research Institute in Danville, Pennsylvania, and coauthor of Nobody’s Fool: Why We Get Taken In and What We Can Do About It.
The smartphone is a single point of entry for many scammers, who can easily reach victims through calls, texts, and email via one device most people always carry with them. In recent years, artificial intelligence (AI) has proven an especially powerful fraud accelerant. The FBI in its 2025 Internet Crime Report noted that $893 million of total fraud losses that year were linked to AI. The New York Times reported in May 2026 that fraudsters often use AI to create fake ads and web stores purporting to sell in-demand brands and items. Criminals can more easily conduct live video or audio calls using a realistic avatar and deepfake voice to impersonate trusted individuals and institutions. According to a 2026 press release from the Federal Trade Commission, imposter scams comprised 1 in 3 reported scams in 2025: People reported losing $3.5 billion to such scams, with almost $1 billion lost to bank and government impersonators.
Personal details posted on social media also allow scammers to quickly find sensitive information that can make a scam more believable. A common one is posing as a family member who says they need an immediate wire transfer to get out of trouble, said Hanoch. “If you’re active online, [criminals] can harvest information easily, like your name, family members, and where you travel.”
Psychologists who study decision-making and fraud understand that scammers are relying on established cognitive and psychological principles, including truth bias, to exploit potential victims. Truth bias describes people’s default assumption that a source or message is credible, especially when we are distracted, rushed, or working with limited information. “We need to believe people for society to function,” said Dan Simons, PhD, a professor of psychology at the University of Illinois Urbana-Champaign and coauthor with Chabris of Nobody’s Fool.
Criminals’ use of urgency and time pressure is deliberate because it can interfere with a person’s reasoning ability, Simons said, instilling anxiety that causes people to act before they take a step back to examine the situation (Kelley, N. J., et al., Computers in Human Behavior, Vol. 142, No. 107648, 2023). Being forced to make decisions quickly often results in poor performance—in this case, giving money to a criminal.
Distraction often adds another variable to the already complex equation. Scammers tend to strike during times of day when people are likely to be busy, hoping they will have less attentional capacity to consider potential risks. In one qualitative study, interviewed scam victims reported they were contacted when they were tired, distracted, or busy with work (DeLiema, M., et al., Victims & Offenders, Vol. 18, No. 7, 2023). When someone’s working memory is occupied with another task, Chabris said, they are more likely to remember statements—even completely made-up ones—as true rather than as unknown or false.
In one study, participants judged short videos of a speaker’s statements labeled “lie” or “truth.” When a distracting task added cognitive load, they leaned toward calling statements “true,” but only when forced to choose. Given the option to say they were unsure, that bias disappeared (Street, C. N. H., & Kingstone, A., British Journal of Psychology, Vol. 108, No. 3, 2017). “In our book, we advise readers to give more consideration to remaining uncertain about things rather than jump to tagging them as true or false,” said Chabris.
Scammers also create vulnerable emotional states to reel people in. Excitement about a prospective opportunity, whether earning fast money, getting a job offer, or meeting a potential date online, can temporarily cloud judgment and lead to irrational decisions. Inciting fear—for example, “If you don’t pay the IRS now, you’ll be arrested”—can also interfere with rational thinking, said Hanoch.
Fraud tactics can include drawing out details about a victim’s personal history, including painful or traumatic experiences, in order to identify emotional vulnerabilities scammers can use to manipulate the person more effectively. Martina Dove, PhD, a psychologist who studies scam techniques and vulnerability and the author of The Psychology of Fraud, Persuasion and Scam Techniques: Understanding What Makes Us Vulnerable, recently analyzed scam manuals for Reuters to help uncover the psychological tactics scammers use to identify vulnerable individuals and build trust through tailored manipulation. “They’ll say, ‘If a victim tells you this, then you need to be this type of person to convince them,’” she said.
Another element of personalization, Simons said, involves introducing scams that are consistent with a person’s expectations. For example, a scammer may target a university professor who is giving an invited address at an out-of-town conference by posing as the organization arranging travel for the conference and collecting credit card information for incidentals.
In one study, a scam victim reported they had filed a whistleblower claim with the Internal Revenue Service (IRS) to report their employer. Later, that participant received a call from an IRS imposter who said he needed to purchase gift cards to process the whistleblower claim (DeLiema, M., et al., Victims & Offenders, Vol. 18, No. 7, 2023opens in new window).