About Passkeys
What Is a Passkey?
Passkey is a verification method that confirms a user’s identity through face recognition, fingerprint recognition, or screen-unlock PIN on their smartphone or computer.
Compared with conventional verification codes, passkeys are more resistant to phishing scams and help reduce the risk of unauthorized access.
Customers with a registered passkey also no longer need to check and enter verification codes, making the process faster and smoother.
Key Features of Passkeys
1. Strong protection against phishing
Passkeys are linked to the official bitFlyer website and app, so they can't be used on fake websites. This helps reduce the risk of unauthorized access through phishing scams.
2. No verification codes to enter
With a registered passkey, you don't need to check and enter a verification code from SMS, email, or other means. Instead, you can verify smoothly with face recognition, fingerprint recognition, or similar.
Your face and fingerprint data stays on your device and is never sent to bitFlyer.
Supported Actions
Passkey verification is available for the following actions:
Sending crypto assets to external addresses
Registering external destination addresses for sending crypto assets
Withdrawing Japanese yen
Registering a passkey is optional. Customers who cannot use a passkey can use their existing two-factor authentication method instead.
At this time, passkeys cannot be used to log in.
How to Set Up Passkey Verification
App
1. Open "2FA" in Settings
2. Register a passkey
3. Enter the verification code
4. Save the passkey on your device
5. Check that registration is complete
Web
1. Open "2FA" in Settings
2. Register a passkey in Settings
3. Enter the verification code
4. Choose where to save your passkey
The options shown depend on your device and browser (e.g., iCloud Keychain, Google Password Manager).
5. Verify on your device
6. Check that registration is complete
Supported Devices and Browsers
For supported devices and system requirements, please see our Recommended System Requirements.
FAQ
For more details about passkeys, see our FAQ.
Disclaimer (please read carefully):
・Crypto assets are not legal tender and may be used to settle a payment only if the person receiving the payment agrees.
・The price of crypto assets may fluctuate due to changes in the balance of supply and demand and other factors, which may result in losses.
・Fees and other charges may apply to crypto asset and related transactions. For details on fees and other charges, see this page.
・To engage in over-the-counter crypto asset derivative transactions, you must provide a margin deposit. For details on the required margin deposit, its calculation method, the applicable margin rate, and other margin-related information, see this page.
・Over-the-counter crypto asset derivative transactions let you trade amounts exceeding your margin deposit with a small amount of funds. However, rapid price fluctuations of crypto assets and other factors may cause losses exceeding your margin deposit within a short period.
・In over-the-counter crypto asset derivative transactions, factors such as sudden price movements or the execution of a loss-cut may result in a trade being executed at a price or under conditions different from those you anticipated at the time of your order, or may result in a trade not being executed at all.
・Before trading, be sure to thoroughly review our pre-contract disclosure documents and related materials.
bitFlyer, Inc.
Crypto Asset Exchange Service Provider: Director-General of Kanto Local Finance Bureau No. 00003
Financial Instruments Business Operator: Director-General of Kanto Local Finance Bureau (FIBO) No. 3294
Member of Association for Certified Payment Service Providers and Association for Financial Instruments Firms: Japan Virtual and Crypto assets Exchange Association (JVCEA)