digital identity

Authlete Tapped by MS&AD Insurers to Overhaul Digital Identity Infrastructure

Norbert Gehrke

24 Jan 2026 — 2 min read

In a move to fortify digital security and streamline customer experience, two MS&AD Insurance Group subsidiaries—Mitsui Sumitomo Insurance and Aioi Nissay Dowa Insurance—have adopted the Authlete backend service to implement OpenID Connect (OIDC) across their customer platforms.

The deployment, executed by the group’s IT arm MS&AD Systems, enables secure, high-speed data linkage and Single Sign-On (SSO) functionality between the insurers’ mobile applications and their web-based policyholder portals.

Rapid Deployment Under Strict Timelines

Driven by the need to enhance the "Policyholder Dedicated Page" web portals, the insurers sought a solution that could securely bridge app-to-web transitions. The project faced a rigorous six-month development constraint.

After a comparative analysis of multiple SaaS solutions, including major IDaaS providers like Auth0, MS&AD Systems selected Authlete. The decision was heavily influenced by Authlete’s proven track record in the highly regulated financial sector, including banking, securities, and credit card industries.

According to the announcement, the OIDC server implemented via the Authlete API was completed within the six-month window and has been operating stably since going live in October 2025.

Strategic Efficiency and Security

A spokesperson for the Digital System Headquarters at MS&AD Systems highlighted the operational efficiency of the partnership: "By unifying licenses across the MS&AD Group, we were able to construct the system efficiently in line with our shared-use policy. While the financial industry demands the highest security standards, we anticipate Authlete will continue to support evolving OIDC security updates."

About the Technology

Authlete provides Web APIs that accelerate the implementation of OAuth 2.0 and OIDC authorization servers. Developed by experts involved in international standard-setting, the platform is OpenID Certified and supports advanced security specifications such as FAPI (Financial-grade API) and CIBA. It is widely utilized across the financial, media, and technology sectors, ranging from startups to enterprise-level corporations.

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