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[Discussion] From Vendor-Led to Bank-Led: The Reality of In-House Development and AI Adoption at Fukuoka Bank and Yokohama Bank

Moving away from total reliance on vendors, banks are shifting toward a model where they take the lead in building, operating, and securing their own systems.

In this candid discussion, representatives from two banks—Fukuoka Bank, which has already established an in-house development framework, and Yokohama Bank, which is currently exploring a bank-led development approach—share their honest perspectives.

They explore what prompted their shift toward bank-led development, the obstacles they encountered while building their internal structures, and how the emergence of generative AI is transforming the development landscape. The conversation also covers how they ensure security, with a look at specific use cases involving Netskope.

Through this dialogue, we uncover the authentic decision-making processes and the trial-and-error experiences of regional banks—revealing insights that only emerge when comparing institutions at different stages and depths of such initiatives.

Tatsuya Negami
Deputy General Manager, DX Promotion Division, Fukuoka Financial Group, Inc.
General Manager, System Solutions Department, The Fukuoka Bank, Ltd.

Hisao Ishikawa
General Manager, IT Solutions Department, The Bank of Yokohama, Ltd.