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Case Study

Fear & Adoption: Trust Unlocked

How understanding security fears transformed Open Finance adoption and made Nubank #1 in Brazil

67% churn reduction
2.4M users secured
24M+ consents
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Key Results

67%
Churn Reduction
From 15% to 5%
4.0→4.8
Security Index
Perception improved
2.4M
Users Secured
Felt more secure

The Challenge

Security fears were causing 15% churn in Open Finance connections. Users were disconnecting their accounts because they didn't feel in control of their financial data.

Key Problems Identified

  • Users feared data exposure and unauthorized access to their financial information
  • Lack of visibility into what data was being shared and with whom
  • No control mechanisms to hide sensitive information when needed

Research Approach

Behavioral Research

Understanding Fear Profiles

Connected financial behavior, trust patterns, and security concerns to identify distinct user profiles with different adoption barriers.

Perception Tracking

Security Index Measurement

Created metrics to track security perception over time and measure the impact of control-focused features.

Solutions Implemented

Street Mode

Allow users to hide sensitive financial information when in public places, giving them control over when their data is visible.

Hide/Unhide Features

Granular controls to selectively hide specific accounts or balances, empowering users with privacy choices.

Transparency Dashboard

Clear visibility into what data is being shared, with whom, and easy one-tap revocation of permissions.

Impact & Recognition

#1 in Brazil

Open Finance Adoption Leader

By addressing security fears head-on with user-centric control features, Nubank achieved market leadership with 24M+ Open Finance consents.

24M+
Consents
#1
Market Position
67%
Less Churn

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