Making Sense of Data Sharing in Open Finance

Making Sense of Data Sharing in Open Finance

In an era where data drives innovation and shapes consumer experiences, open finance emerges as a transformative force. It offers a vision of a seamlessly connected financial ecosystem, one where individuals and businesses harness their data to unlock personalized services, greater choice, and stronger financial well-being.

Yet with this promise comes complexity. Making sense of how data flows, the value it creates, and the protections required is essential for every stakeholder. This article explores the core concepts, technical underpinnings, stakeholder benefits, and regulatory models that define consumer-authorized sharing of financial data in open finance.

Understanding Open Finance vs. Open Banking

Open finance is often described as the next evolution after open banking. While open banking focused on payments and current accounts, open finance extends into every corner of a customer’s financial life. It encompasses:

  • Deposits and payments
  • Credit products such as loans and credit cards
  • Investments and securities accounts
  • Pensions and retirement products
  • Insurance policies and claims history
  • Potentially non-financial data like utilities and telecom

This broader scope relies on standardized, secure API interfaces, strong customer authentication, and a principle of security and privacy by design. It positions financial institutions as hubs in a dynamic network of innovation.

How Data Sharing Works in Open Finance

At its core, open finance is a technical and operational framework for moving data safely and efficiently. Three primary roles form the ecosystem:

Data providers such as banks, insurers, and investment firms that hold the data; third-party providers including fintech apps, aggregators, and robo-advisors that consume the data; and the consumers who authorize access.

The typical end-to-end flow unfolds in phases:

1. User consent: The consumer selects a service and grants permission in an app.

2. Authentication: Redirect to the provider for identity verification, often using strong customer authentication.

3. API request: The third-party provider requests specific data scopes via API.

4. Token issuance: Upon validating consent, the provider issues secure tokens for data access.

5. Data delivery: Encrypted channels transmit the requested data to the third-party.

6. Token refresh and revocation: Access persists only for the agreed period or until revoked, respecting purpose limitation and data retention rules.

Standards like PSD2/Open Banking in Europe, the FDX API in the US, Australia’s Consumer Data Right, and Singapore’s SGFinDex define how data is formatted, secured, and exchanged. Emerging protocols such as the Linux Foundation’s Delta Sharing Protocol enable real-time sharing of large datasets across platforms.

Benefits and Value for Stakeholders

Empowering Consumers and Small Businesses

Open finance offers unprecedented visibility and control. With a holistic view of consumer’s financial life, users benefit from tailored advice, lower costs, and improved financial health. Key advantages include:

  • Aggregated accounts, loans, investments, and insurance in one dashboard
  • Personalized lending decisions and alternative credit scoring
  • Automated savings, budgeting, and bill management
  • Easy comparison and switching between providers
  • Enhanced financial inclusion for thin-file customers

Opportunities and Challenges for Financial Institutions

Traditional banks face both opportunity and urgency. By embracing open finance, they can enrich risk assessment, fraud detection, and marketing with inbound data from external sources. Outbound sharing opens embedded finance partnerships, positioning banks as data hubs rather than siloed services.

However, they must invest in API infrastructure, compliance controls, and customer consent mechanisms. The competitive landscape shifts as switching friction lowers, demanding stronger customer engagement strategies.

Innovation Platform for Fintechs

Fintechs thrive on access to consistent, high-quality data streams. Whether building budgeting tools, lending platforms, or robo-advisors, they leverage open finance to accelerate development and reach scale. Benefits include:

  • Reduced onboarding friction through standardized APIs
  • Real-time insights for usage-based insurance and cash-flow lending
  • Seamless integration with accounting and ERP systems for SMEs
  • Opportunities to embed financial services into non-financial apps

Regulatory Landscape and Global Models

Governments and regulators are crafting diverse frameworks to balance innovation with consumer protection. The following table highlights key regional approaches:

Each regime emphasizes Consumer control and consent while enforcing security and privacy by design. Timelines vary: the US rule takes effect in early 2025, Australia’s CDR has rolled out since 2020, and Europe’s PSD2 has been in force since 2018.

Navigating Risks and Governance

Data sharing at scale introduces risks of misuse, breaches, and privacy violations. Robust governance frameworks are essential:

• Clear consent management and revocation processes.

• Purpose limitation and data minimization principles.

• Independent security audits and standardized incident response.

• Transparent reporting and accountability for all participants.

By adopting global best practices and aligning with standards like ISO 27001, organizations can mitigate risks while fostering trust.

Looking Ahead: The Future of Open Finance

As open finance matures, we expect deeper integration across industries. Artificial intelligence will harness richer datasets for predictive analytics, while embedded finance will place financial services in every digital interaction. The promise of a truly open, interoperable global ecosystem—powered by Personalized finance and embedded services—is within reach.

Success will depend on collaboration between regulators, incumbents, and innovators to uphold transparency, security, and consumer empowerment. By making sense of data sharing today, stakeholders can shape an inclusive financial future that serves everyone.

By Matheus Moraes

Matheus Moraes