According to reports, Victor Pleshchuk has been received four years of probation and ordered to pay $8.9 million to the payments processor.
The accused is one of a number of hackers who unlawfully gained access to the computer system of the Royal Bank of Scotlandâs US-based payments division in November 2008.
After breaching data encryption security surrounding payroll debit cards, the hackers raised account limits and provided fake cards to allow the funds to be withdrawn from ATMs.
Yuriy Novolodsky, Mr Pleshchuls' lawyer, told Bloomberg: âThis is not a regular crime but a cybercrime and Pleshchuk didnât really have a full understanding of the damage he was causing. He pleaded guilty and is fully collaborating with authorities.â
In August, Sergei TÅ¡urikov, another member of the gang was extradited to the US to face charges over the crime.
At the time, Sally Quillian Yates, US attorney of the Northern District of Georgia, described the hack as âthe most sophisticated and organized computer fraud attack ever conductedâ.
By Jim Ottewill