← Cases
GermanyFinance and insurance2017 – ongoing

N26

Machine-learning identity verification and biometric re-authentication

N26 blocked an account takeover after biometric checks flagged a prerecorded video

WorkingVendor case studyVendor ↗

Problem

Fraudsters tried to take over legitimate accounts remotely. Initial identity checks could not protect accounts throughout their lifetime.

Approach

N26 worked with Fourthline on machine-learning facial recognition and liveness detection. Customers supplied a selfie and live video when pairing new devices. Fourthline described an attempted takeover where location and biometric mismatches triggered an alert, after which N26 closed the account.

Results

No published figures

Takeaway

Device pairing became another identity checkpoint after account opening. The reported incident combined location checks with biometric verification.

Categories

Business function
Finance, risk and legal
Innovation type
Process innovation
AI technology
Computer vision
Evidence
Vendor case study

Sources

  1. Securing the future of digital banking
    Fourthline2025Vendor publication

Source summaries

[1]Fourthline2025

Fourthline described identity checks and continuing authentication at N26. It reported an account-takeover attempt detected within seconds and subsequent account closure.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
Open case page ↗