An anonymous reader writes: "An unnamed UK-based regional water supply company lost over $645,000 in a sophisticated scam that involved social engineering, an inside man, and international bank transfers," reports BleepingComputer. According to a recently disclosed report, one of the water supplier's call center operators was taking screenshots of customer details and sending this data to his cousin in the UK. This person would trick other call center operators to reset the passwords for those accounts, add his bank account info to the account, and request a refund for previous transactions. Their operation was discovered after customers, usually small-to-medium businesses, discovered they couldn't access their accounts anymore, and also reported new bank account details. A search of the CRM logs revealed that only one call center operator had accessed those profiles, albeit he never initiated or approved refunds. When questioned, the arrogant employee signed an affidavit allowing investigators to search his home PC, thinking they would never discover anything, since he already wiped his hard drive. They did because he forgot to delete his shadow volume copies, where investigators discovered copies of emails sent to his cousin in the UK. These emails contained the screenshots of his work PC with SMB client data. In the end, the call center employee ended up helping authorities secure a conviction for his cousin.