Case Study: Westpac New Zealand achieves real-time fraud detection and reduced fraud losses with ACI Worldwide

Westpac New Zealand gets proactive in the fight against Fraud

Westpac New Zealand faced a sudden spike in fraud that exposed the limitations of its legacy point‑based detection. To become more proactive in identifying evolving risks and protecting customers, Westpac engaged ACI Worldwide and selected ACI Fraud Management (including ACI® Proactive Risk Manager™) to deliver an enterprise real‑time fraud detection platform.

ACI Worldwide implemented a rules‑and‑analytics solution integrated with Westpac’s BASE24 payment processing and IBM System z infrastructure, embedding real‑time rules into authorization flows so suspicious activity can be stopped before it occurs. The ACI Fraud Management deployment alerted Westpac to fraud within days, has delivered significant reductions in fraud‑related losses, improved cross‑channel detection, and greatly enhanced the bank’s ability to identify and neutralize emerging fraud schemes.

Westpac

Patrick Cattermole

Manager of the Card Fraud Team