A data spill from an unsecured cloud server has exposed hundreds of thousands of sensitive bank transfer documents in India, revealing account numbers, transaction figures, and individuals’ contact details.

Researchers at cybersecurity firm UpGuard discovered in late August a publicly accessible Amazon-hosted storage server containing 273,000 PDF documents relating to bank transfers of Indian customers.

The exposed files contained completed transaction forms intended for processing via the National Automated Clearing House, or NACH, a centralized system used by banks in India to facilitate high-volume recurring transactions, such as salaries, loan repayments, and utility payments.

The data was linked to at least 38 different banks and financial institutions, the researchers told TechC

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