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Commonwealth Bank of Australia (CBA) has announced the development of an advanced agentic artificial intelligence (AI) system designed to help detect fraud, amid ongoing high-profile investigations across the mortgage and lending sector.
The agent builds on the major lender’s “advanced fraud protection systems”, which it said monitors more than 80 million signals each day, including transactions, card and online payments, as well as interactions across digital banking channels.
According to CBA, the new AI agent identifies emerging threats and determines how it can disrupt them, operating around the clock to continuously monitor activity.
The bank said detection rules are then reviewed and approved by CBA’s fraud analytics team before being implemented.
It also said its fraud detection technology has helped reduce fraud losses by more than 20 per cent in the first half of the 2026 financial year compared to the same period in 2025.
CBA executive general manager James Roberts said the new technology forms part of a $1 billion commitment to strengthen the bank’s fraud and security capabilities.
“When suspicious patterns are identified, the system quickly assesses their severity, analyses context, and proposes new detection rules to help intercept them. The new agent goes beyond traditional AI by not only rapidly identifying new threats but also determining how it can seek to disrupt them,” he said.
“The agent operates around the clock, continuously monitoring activity and adapting to emerging threats.”
Evolving landscape
Fraud and scams remain a concern in the mortgage and finance industry, with stakeholders across the sector continuing to grapple with how best to address the issue.
Last week (22 April), major aggregator Loan Market Group (LMG) confirmed to Broker Daily sister brand The Adviser that two matters within its network have been identified in recent months relating to alleged home loan fraud and are currently under investigation.
This followed earlier media reports that aggregator Finsure had individuals within its network implicated in potential loan fraud, first reported by The Australian Financial Review.
At the time, Finsure CEO Simon Bednar said the company had “not been directly contacted by any lenders or regulators regarding the current review being undertaken” and added that it had no further details on the allegations.
In February 2026, CBA self-reported concerns to police and the corporate regulator regarding potential mortgage fraud estimated at around $1 billion.
Earlier this week, Docuscan – an Australian AI-driven platform – announced the launch of FraudX, a new AI-powered fraud detection solution designed to help brokers and lenders uncover financial fraud hidden within document metadata.
[Related: Warning issued as bank scams grow in sophistication]
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