AI-Generated Documents Spark $2.8B Mortgage Fraud Scare in Australia

National Australia Bank called for a National Economic Crime Strategy in a June 27 announcement, saying individual bank efforts are no longer enough. “This is complex, organized crime that spans industries and borders,” NAB said in the announcement. “It requires a system-wide response.”

Simone Constant, commissioner of the Australian Securities and Investments Commission, issued an open letter May 8 warning financial services licensees that AI is reshaping the fraud threat. “This is not a distant or hypothetical risk,” Constant wrote. “It is here now, evolving quickly and requires the attention of boards and executives.”

Sector groups including the Mortgage and Finance Association of Australia and the Australian Banking Association have petitioned Treasurer Jim Chalmers to expand the Consumer Data Right, according to the Broker Daily report. The expansion would give lenders direct consent-based access to Australian Taxation Office income data and ASIC registry information, bypassing the document layer entirely. The federal government committed A$62 million (US$43 million) over two years from 2026 to 2027 to fund the next phase of the Consumer Data Right, including integrating tax authority data into the open banking ecosystem.

A borrower who submits a payslip provides a document that can be fabricated. A borrower whose income is confirmed directly from the tax authority's payroll system provides data that cannot be faked.

“Digital finance was built around the assumption that more data creates more certainty,” PYMNTS reported June 10. “Synthetic borrowers invert that premise.”