A Romanian national has been sentenced to nearly three years in federal prison for defrauding banks and hundreds of banking customers. Acting United States Attorney Sara Miron Bloom announced that Mario Demarco, also known as Marius Lupu and David Adamec, will face deportation proceedings after serving his sentence.
Demarco, 30, pleaded guilty in January to conspiracy to commit bank fraud. U.S. District Court Judge Mary S. McElroy sentenced him to 33 months in prison followed by two years of supervised release. He was also ordered to pay $16,567.06 in restitution.
Immigration and Customs Enforcement has lodged an immigration detainer against Demarco.
Court documents reveal that from October 2022, Demarco installed skimming devices on ATMs across the Northeast and Mid-Atlantic regions. These devices intercepted customers’ debit card information, which he used to create fraudulent debit cards for unauthorized transactions.
Demarco compromised at least 952 cards through skimming devices installed on ten ATMs and owes restitution to fifteen banks.
Assistant United States Attorneys Taylor A. Dean and Ly T. Chin prosecuted the case, which was investigated by Homeland Security Investigations with assistance from several police departments across Rhode Island, Massachusetts, New York City, and Connecticut.

