Two-factor authentication is a supplemental form of authentication used in addition to your ID and password to further strengthen your account’s security. bitFlyer supports two-factor authentication by email, SNS, or authentication app for the following actions.
① When logging in
② When registering an external address
③ When withdrawing JPY
④ When withdrawing crypto assets (virtual currency) or using bitWire
1 is optional, but 2 through 4 are always required.
If you have not changed your password since opening your account, or if you used the same email, ID, and/or password for other services, there is a risk of your email being compromised. We strongly recommend using SMS or an authentication app to improve the security of your account. For those who have not set two-factor authentication or use email authentication, please set a 4-digit PIN.
How to enable two-factor authentication:
After logging in, select Settings and then Security Settings. Under Two-Factor Authentication, select Update.
Select authentication app, text message to your cell phone (SMS), or email.
When selecting SMS:
When selecting an authentication app:
When selecting email:
lease set a 4-digit PIN.
If two-factor authentication is not enabled when making a crypto assets (virtual currency) withdrawal or using bitWire, two-factor authentication by email and a 4-digit PIN will be required.