Minnesotans reported losing more than $12.6 million to cyber criminals last year, up more than 35 percent from 2015, through scams such as invasive malware and fraud on dating sites, according to the FBI.
The bureau's Internet Crime Complaint Center (IC3), which released its annual report on cybercrime this month, said it believes just 15 percent of victims report their cases to the authorities.
"We think there is underreporting of these scams, due in part to shame and humiliation associated with being a victim," said Supervisory Special Agent Patricia Weber in the FBI's Minneapolis office, adding that such victims are often seniors.
Agents in Minneapolis cited an uptick in compromised business e-mails and "romance scams," in which increasingly sophisticated criminals use online dating sites to entangle victims, sometimes causing them to drain their life savings.
Business e-mail compromise ($360 million) and confidence fraud/romance schemes ($219 million) were the leading crimes nationally in 2016. Victims 60 or older were the most common and reported losing the most last year.
The FBI believes that simple safeguards can make a difference, and it has issued alerts recommending that businesses exercise caution when posting details on company websites or social media, use two-factor authentication for corporate e-mail accounts and vet unfamiliar e-mail accounts.
"When you see a return address on a letter, what does that tell you? Nothing," said Supervisory Special Agent Michael Krause in Minneapolis. "You have to understand the internet operates the same way. There's no assurance the message is coming from who you think it's coming from."
The number of Minnesotans reporting crimes remained steady at 3,390, even though the dollar volume of losses rose sharply. The state's victims reported losing more than neighboring Wisconsin ($10.3 million), Iowa ($5 million), and North and South Dakota ($859,856 and $933,723, respectively), which are also covered by the FBI's Minneapolis office. California typically fields the country's largest loss reports; it led all states last year with $255 million in reported losses.