Open banking refers to the practice of making financial data easily accessible to third-party service providers, allowing them to initiate transactions on behalf of consumers. This revolution in the fintech industry presents both challenges and opportunities for established banks and disruptors alike. Challenges include navigating evolving regulatory standards, maintaining compliance with emerging regulations, and dealing with legacy architectures that can hinder innovation and operational efficiency. However, open banking also offers the potential for rapid innovation, allowing institutions to experiment with new technologies and revenue streams, and to scale quickly in response to changing demand. To future-proof their strategy, banks should start by defining a clear open banking strategy, viewing regulations as accelerators rather than inhibitors, simplifying and unifying their data, considering scalability, and striving for real-time data delivery.