A mastermind behind an alleged money-laundering network used by cybercriminals to move stolen funds abroad pleaded guilty in a US court. Oleg Korniev, 42, admitted leading Your Mule Cashout, or YMCO, a system that helped hackers conceal theft from US company bank accounts and transfer the money, mainly to Eastern European countries. Prosecutors say YMCO recruited more than 15,000 US residents as money mules and laundered at least $10 million stolen from over 750 US bank accounts. Court documents allege YMCO deceived recruits into thinking they were making legitimate transfers for real businesses. The operation told mules they would receive transfers from companies into their personal accounts, then withdraw the money and wire it overseas. Instead, prosecutors say the mules withdrew stolen proceeds and sent the funds to YMCO conspirators out of the country, with no payment. Korniev admitted helping create YMCO policies and procedures, hiring and managing employees, and rewarding or punishing staff based on performance. He also secured illegal services that supported the network. Korniev’s guilty plea covers money laundering, computer fraud, access device theft, and aggravated identity theft. He admitted causing more than $14.7 million in actual and intended losses, and laundering at least $7 million from cybercriminals. He agreed to provide full restitution to known victims and to forfeit cash seized after his arrest in the Republic of Georgia. Four other members of YMCO were previously arrested abroad and extradited to the US. They pleaded guilty, received sentences of 37 to 63 months in prison, and were ordered to pay more than $9.1 million in restitution each. Korniev remains under the court process and faces 2 to 50 years in prison.