Case Study

Banking fraud platform pilot

Anonymised engagement: bank with rising card and social engineering fraud. 8-month consolidated fraud platform launch with measurable loss reduction.

Context

Retail bank UZ. Card fraud rising 25% YoY. Social engineering cases growing — customers transferring money to fraudsters, public scandals. Existing fraud detection — fragmented per category (card processor, online banking, internal).

CRO task — consolidated fraud loop.

Diagnostic (4 weeks)

Fraud loss assessment:

  • Card fraud: 0.04% transaction volume (industry average 0.05).
  • Social engineering: estimated $1.2M annualised losses, growing.
  • Account takeover: rarely detected, likely under-detected.
  • Cross-category cases: invisible.

Approach (8 months)

Months 1-2. Architecture design. Customer-centric fraud platform consolidating signals across channels.

Months 2-4. Phase 1 — card fraud upgrade. Real-time scoring engine, ML model retraining, false positive tuning.

Months 4-6. Phase 2 — social engineering detection. Behavioural patterns + step-up authentication for suspicious transfers.

Months 6-8. Phase 3 — cross-category investigation workspace. Fraud analysts work with unified case context.

Results

After 8 months:

  • Card fraud loss reduction: 42%.
  • Social engineering cases prevented: 89 cases, ~$680k saved.
  • False positive rate −33% — better customer experience.
  • Investigation throughput +60% per analyst.
  • Customer NPS post-fraud-block (false positives): +14 points (faster resolution).

What is critical

Customer-centric approach — not “card fraud” vs “online fraud”.

Step-up authentication critical for social engineering.

Customer feedback loop in real time — confirms / denies suspicion for model training.

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