The attempted hit at a Cumberland Farms ATM in Ansonia was blocked by a software patch that protected the machine from theft.
Prosecutors said the software patch successfully prevented the theft, which was part of a larger scheme allegedly orchestrated by four men.
The four men are currently being held in custody, and if convicted, they face serious penalties, including up to 10 years in federal prison for the stolen-property charge and up to five years for the conspiracy charge.
The FBI is investigating the case in conjunction with the Connecticut State Police, the Raleigh Police Department, and the New York City Police Department.
The investigation remains ongoing as authorities look into whether the same group is responsible for other ATM thefts.
"Jackpotting" incidents, which involve hackers exploiting ATM vulnerabilities to steal funds, have been on the rise in the United States.
According to federal investigators, over 700 ATM jackpotting incidents with losses exceeding $20 million occurred in 2025 alone, out of a total of 1,900 incidents since 2020.
