JPMorgan Chase is currently engaging in legal proceedings against individuals who took advantage of a banking glitch to withdraw money from the bank’s ATMs. Customers who allegedly participated in a check fraud scheme are being sued by the bank after withdrawing thousands of dollars from the ATMs during the summer. The scheme involved depositing a counterfeit check into the ATM and then withdrawing funds that were automatically credited to the account. These customers were aware that the check would eventually bounce and the funds would disappear.

Court documents reveal that a man from Houston is one of the customers facing a lawsuit from Chase. The bank claims that the man had an accomplice deposit a fake check worth $335,000 into his account, and he subsequently withdrew a total of $290,939. Chase has not disclosed the total amount of money lost to this scheme but is currently investigating “thousands” of potential cases. The bank has also filed lawsuits in Miami and California, alleging that customers took between $80,000 and $141,000. However, most of the cases under investigation involve significantly smaller amounts.

Chase has stated that its security team is initially contacting customers to request repayment of the illicit withdrawals. Legal action will be taken if the funds are not returned.