Australia’s “Big Four” banks are doubling down on the fight against financial crime, deploying cutting-edge technology to detect and dismantle networks of mule accounts.
The accounts, often operated by unsuspecting individuals or fraudsters, serve as conduits for transferring illicit funds, enabling broader criminal enterprises to thrive.
The banks’ concerted efforts underscore a critical push to fortify Australia’s financial ecosystem against the rising tide of sophisticated fraud schemes.
Recent reports submitted to a parliamentary review reveal that investments in artificial intelligence (AI), behavioral analytics, and interbank intelligence-sharing systems have significantly improved the banks’ ability to detect and prevent scams.
The strategies are delivering positive results, with Westpac reporting a 31% reduction in overall scammed funds and a 29% decrease in customer scam losses.
The figures, disclosed in new documents filed with the parliamentary review, show that while the banks’ approaches vary, all have flagged or closed a substantial number of accounts due to their enhanced anti-fraud measures.
One key tool in this effort is BioCatch, an “interbank, behavior- and device-based fraud and scams intelligence-sharing network,” which revealed its list of Australian bank users last month.
ANZ first highlighted its use of AI and related technologies in last year’s disclosures, detailing the deployment of more than 170 sophisticated algorithms and biometrics to prevent customer funds from being sent to cybercriminals.
This year, the bank pointed to a specialised “mule detection model” as a key contributor to the significant rise in flagged accounts.
NAB also reported a significant increase in flagged accounts, crediting its use of BioCatch for its ability to “proactively identify and block potential mule accounts before they receive illicit funds.”
Westpac, which saw more than double the number of account closures this year compared to last, attributed the increase to improved detection capabilities, resulting in more proactive identification of illegitimate bank accounts.
Westpac also noted a decrease in scam-related losses, with a 31% reduction in gross scammed funds and a 29% decline in customer scam losses, thanks to better detection and prevention measures.
CBA, the only bank to provide specific account exit figures, emphasized its ongoing investment in new technologies and the enhancement of existing detection systems for mule accounts.
However, the bank also highlighted that the approaches used by different institutions vary in sophistication and accuracy.
All four banks acknowledged that accounts can be flagged for a variety of reasons, not just for receiving illicit funds. Some accounts are flagged before any funds are transferred, based on intelligence gathered by the banks.
In other cases, account holders may unknowingly be tricked into receiving scam-related proceeds, or the accounts may be opened using stolen or fake identity documents.
The ongoing use of advanced technologies is proving crucial in the fight against financial crime, with the Big Four banks making strides in protecting customers and closing loopholes used by fraudsters.
