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My Number Card security｜Digital Agency

https://www.digital.go.jp/en/policies/mynumber/safety

April 7, 2026 at 05:45 PM JST•The archive page, viewer, and downloads use this saved version.

April 7, 2026 at 05:45 PM JST·www.digital.go.jp

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My Number Card security｜Digital Agency

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Original URLhttps://www.digital.go.jp/en/policies/mynumber/safety

StartedApril 7, 2026 at 05:45 PM JST

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This page outlines Japan's security measures for the My Number Card. The government is developing safe environments for its use from technical and operational perspectives. If lost or stolen, cardholders can immediately suspend card functions by calling the toll-free number 0120-95-0178, available 24/7 with foreign language support. Replacement cards can be reissued within one week as a rule. Applicants must apply at their municipal office within 30 days of loss or theft, with consultation available for delays.

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