LOS ANGELES
A Carson woman who formerly worked as a U.S. Postal Service letter carrier in Torrance was sentenced to five years and three months in federal prison for stealing checks and debit and credit cards from the mail and selling some of them to accomplices over three years, prosecutors announced Monday.
Mary Ann Magdamit, 31, was sentenced by U.S. District Judge John F. Walter, who also ordered her to pay $660,200 in restitution. Magdamit has been in federal custody since July 1. She pleaded guilty Aug. 11 to one count of conspiracy to commit bank fraud.
From at least 2022 until July 2025, Magdamit stole mail containing checks, personal identifying information and bank-issued cards, prosecutors said.
Authorities said she activated some of the stolen cards online, used them to make purchases and sold others to co-conspirators.
She also arranged for accomplices to cash stolen checks, usually with people using counterfeit identity documents in the name of the payee, prosecutors said. Federally insured banks and credit unions were among the victims.
During a search of Magdamit’s apartment in December 2024, law enforcement seized 133 stolen credit and debit cards, 16 U.S. Treasury checks and a loaded, un-serialized Glock-clone handgun with an extended 27-round magazine, commonly referred to as a ghost gun, prosecutors said. Agents also found luxury goods allegedly purchased with cards stolen from the mail.
Authorities said Magdamit used stolen cards on international trips to Turks and Caicos and Aruba and posted photos of luxury purchases and vacations on Instagram, including images showing stacks of $100 bills.
Agents arrested Magdamit on July 1 after learning she continued making purchases with victims’ credit cards, prosecutors said. A second search that day turned up additional stolen cards.
Magdamit has agreed to forfeit a Rolex watch and other luxury goods.
“Individuals, businesses, and governments rely on the Postal Service” for first-class deliveries, prosecutors wrote, arguing that lower-income Americans often rely on mailed Treasury checks or benefit cards — items they said Magdamit targeted.