A Carson woman and former United States Postal Service employee was sentenced to 63 months in federal prison for stealing checks and credit cards from the mail over a three-year period. Mary Ann Magdamit, 31, who worked as a letter carrier at the Torrance Main Post Office, pleaded guilty to one count of conspiracy to commit bank fraud.
United States District Judge John F. Walter handed down the sentence and ordered Magdamit to pay $660,200 in restitution. According to prosecutors, from at least 2022 until July 2025, Magdamit stole mail containing checks, personal identifying information, and debit and credit cards. She activated stolen bank-issued cards online for purchases and sold some of them to accomplices.
Magdamit also arranged for her co-conspirators to cash stolen checks using counterfeit identity documents. The scheme targeted federally insured banks and credit unions.
During a search of Magdamit’s apartment in December 2024, law enforcement seized 133 stolen credit and debit cards, 16 U.S. Department of Treasury checks, luxury goods purchased with stolen cards, and a loaded un-serialized “ghost gun.” Investigators also found evidence that she used stolen cards on international trips to Turks and Caicos and Aruba.
Magdamit was arrested on July 1 after agents discovered she continued making purchases with victims’ credit cards. A subsequent search led to the recovery of additional stolen cards. On social media platform Instagram, Magdamit posted images displaying her luxury purchases, vacations, and large amounts of cash. She has agreed to forfeit a Rolex watch and other luxury items.
“Individuals, businesses, and governments rely on the Postal Service to deliver over 100 million pieces of first-class mail daily,” prosecutors wrote in a sentencing memorandum. “Especially for the poorest Americans, who are often unbanked, they rely on the mail to deliver their government benefits in the form of Treasury checks or EDD debit cards, precisely what [Magdamit] chose to steal.”
The investigation was conducted by the United States Postal Service Office of Inspector General, United States Postal Inspection Service, and Treasury Inspector General of Tax Administration. Assistant United States Attorney Andrew Brown prosecuted the case.
