Capy Inc. (Headquarters: Chiyoda-ku, Tokyo; President and CEO: Mitsuo Okada; hereinafter referred to as Capy) is pleased to announce that the number of users for Capy's passkey authentication solution surpassed 4,780,516 as of June 2026. *The number of users represents the total number of target users across services that have implemented Capy's biometric authentication solution (as of the end of June 2026). In recent years, with the increase in phishing scams and unauthorized login incidents exploiting generative AI, attention is growing towards passkeys, which are "authentication methods that do not use passwords themselves." ■ The Growing Importance of "Authentication Security" in the Generative AI Era Incidents of corporate authentication information theft and unauthorized logins are becoming increasingly sophisticated year by year, highlighting the growing importance of authentication security. For companies, it has become an urgent task to address issues such as unauthorized login damage, account takeovers, information leakage due to phishing, and the circulation of authentication information on the dark web. ■ Moving Away from "Password Dependency" is a Global Trend Led by the FIDO Alliance, the standardization of passwordless authentication is progressing globally. With the expanding support from major OS and browser vendors, passkeys are rapidly beginning to penetrate among general users. Passkey authentication is drawing attention as a method that utilizes public-key cryptography, does not store passwords on the server side, and is expected to reduce the risk of phishing damage. Furthermore, by leveraging biometric and device authentication, it offers benefits such as: No password entry required No SMS authentication required Simplified login experience Reduced support load These aspects, which balance user experience and security, are highly valued. At Capy, we position passkeys not merely as a security measure, but as an authentication infrastructure tha