1. Log in to Coincheck in your browser, tap the gear icon at the top left, then select "Passkey authentication" from the menu.

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2. Tap "Register".

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3. Enter the authentication code sent to your registered email address.

• The code expires in 5 minutes.
• Make sure to enter the latest code.

4. Follow the on-screen instructions to complete biometric authentication.

• Displayed instructions may vary depending on your environment.

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5. When the registered passkey appears on the passkey authentication screen, the setup is complete.

• A confirmation email will be sent to your registered email address.