Case Study: Sidian Bank achieves rapid fraud detection and major operational loss reduction with NetGuardians

Sidian Bank - Customer Case Study

Sidian Bank, a Nairobi-headquartered bank with 44 branches that runs Temenos T24, faced a 2019 cyber incident on a subsidiary server that revealed gaps in visibility and controls over super‑users and backend activity. The bank wanted end‑to‑end transaction logs, easy‑to‑read reports and stronger enforcement of security protocols (for example to stop password sharing), and engaged NetGuardians to provide a fraud‑mitigation and monitoring solution integrated with T24.

NetGuardians deployed its plug‑and‑play machine‑learning fraud‑mitigation software—installing a single server, enabling the needed T24 fields and delivering rapid implementation with local support—and began producing reports within weeks. The system detected and stopped ATM SIM‑swap fraud, helped explain 100% of teller shortages and cut operational losses from roughly KES 2m a year to low five figures (Jan–Sep), reduced investigation time by at least 20% (average investigations shortened by two days), and materially lowered fraud in 2020, while also curbing password sharing through improved visibility.

Sidian Bank

Peter Karichu

Head of Internal Audit