A 21-year-old Connecticut woman on Tuesday pleaded guilty to participating in an ATM skimming operation between February and July, the U.S. attorney's office in Connecticut said. Gabriella Graham of New Haven admitted to helping produce cloned cards that were created using details stolen form bank customers who used compromised ATMs. Prosecutors said members of the racket fitted skimming devices and PIN-reading cameras on cash machines at 11 banks and credit unions. In total, 250 accounts were victimized, resulting in fraud losses of more than $336,000.