Case Study: bunq cuts fraud and false positives across 20M+ customers with Sardine
Key results
The challenge
bunq, a European neobank serving over 20 million global customers, needed to keep pace with the rising complexity and turnover rate of fraud threats. Fraud patterns evolved faster than existing controls could adapt, and the team needed real-time detection able to trace scams across linked accounts and devices.
The solution
bunq adopted Sardine's end-to-end fraud and AML platform, using device and behavior analytics, phone risk scoring, a no-code rule builder with backtesting, machine learning, and case management. The platform lets the fraud team detect threats in real time and trace activity across accounts and devices.
“Sardine's platform helped us instantly detect the threat, trace the scam across accounts and devices, and shut it down on the spot. We went from alert to resolution in under 20 minutes.”
SRStephanie RiosProduct Owner for Fraud Prevention, bunq
The results, in context
bunq reported 82% lower fraudulent incoming funds compared to similar neobanks and 95% fewer fraud victims versus industry benchmarks, alongside a 4X reduction in false positives. In one live attack, the team went from alert to resolution in under 20 minutes.