Suspicious transaction step-up: проверить identity без блокировки

Сценарий

Customer X пытается перевести $5000 на новый recipient в late hour. Score fraud — high. Block ⇒ если legitimate, customer страдает. Approve ⇒ если fraud, money lost.

Step-up: позволить customer prove identity через additional factor.

Триггер

Real-time fraud scoring:

• New recipient + large amount.
• Unusual time / location.
• Recent device change или login from new IP.
• Pattern matching known fraud (social engineering victim characteristics).

Действие

Не auto-decline. Step-up через one of:

A) Push к app с biometric confirmation (face ID).

B) Voice call автомат от bank с PIN confirmation.

C) Live agent call для very high-risk.

D) Video selfie matching.

Customer responds within window (например, 5 min) — proceed. No response — hold for review.

Banking-specific concerns

cbu.uz биометрические требования делают biometric step-up obvious choice к 2026.

False positive cost — customer churn для legitimate transactions blocked frequently.

Vulnerable customers — elderly, less digital — alternative non-app methods.

Liability shift. После step-up — if customer confirms и transaction is fraud, customer’s social engineering victim — bank policy decides.

Что меряется

Step-up acceptance rate (customer reaches step-up).

Confirmation rate within window.

True positive vs false positive ratio.

Customer NPS post step-up.

Fraud loss prevented.

Что не делать

Не auto-decline без step-up — false positive disasters.

Не использовать SMS-OTP только — SIM swap defeats.

Не делать step-up too friction-heavy — customer abandons.

Не игнорировать accessibility — некоторые customers не могут использовать biometric.

Как SamaraliSoft подключается

Sprint Step-Up Use Case — 4-6 недель. Trigger calibration, channel orchestration, biometric integration.

Связанное

• /solutions/banking-fraud-platform/ — fraud platform
• /architecture/banking-ekyc-architecture/ — eKYC
• /insights/banking-biometrics-april-2026/ — biometrics
• /architecture/banking-realtime-decisioning/ — decisioning