How can I prevent unauthorized logins?

In order to provide a secure service to our customers, we have measures to prevent unauthorized logins and use. We also support additional measures on the customer side.
The following additional security measures are available for our customers.

Two-factor authentication

You can enable two-factor authentication through SMS, email with 4-digit PIN,or authentication apps.
*We recommend using an authentication app for stronger security.
You can strengthen the security of your account by requiring a 6-digit authentication code in addition to your email address and password.
To enable two-factor authentication, log in to bitFlyer, select Settings, and then Security Settings. From there, you can enable two-factor authentication.

• Confirm your login history

Whenever your account’s email and password are entered to log in to bitFlyer’s services, the date, time, location, and device used are all recorded on the Login History page.
To see your login history, log in to bitFlyer, select Settings, and then IP Address / Login History.

• Enable login alerts

If you enable login alerts, you’ll receive an email every time your bitFlyer account logs in.
To enable login alerts, log in to bitFlyer, select Settings, and then Security Settings. From there, you can enable login alerts.
*If you receive an unexpected login alert or have a login you do not recognize in your login history, it could mean that your email address and password have been stolen by a third party. If you suspect that a third party has logged in to your account, please change your email address and password immediately.

• Set a complex password

Do not set a simple password or one that uses common combinations of characters (12345678, asdf, 1980, password), your name, telephone number, or birthdate.
To make a password that is difficult to guess, ensure that is at least nine characters with a combination of capital letters, lower case letters, numbers, and symbols so that it has an appropriate length and complexity.
To change your password, log in to bitFlyer, select Settings, and then Change Password.
Unauthorized access has been happening on many services recently. To improve security, do not use the same password for other websites and services.

• Keep your OS and apps updated

Operating systems and apps may contain bugs or design mistakes that cause flaws in information security called vulnerabilities.
If these vulnerabilities remain, they come with the risks of unauthorized access and viruses. Even if a vulnerability is fixed, a new vulnerability could be discovered. Therefore, it is advisable to regularly check for and install updates to your OS and apps.

• Install security software

The number of viruses and fraudulent websites that can steal information from PCs and smartphones is on the rise. We recommend installing security software on your devices to increase security.

Most frequently asked questions

I would like to deactivate two-factor authentication.
If you are able to log in, select Settings and then Security Settings to change or deactivate your two-factor authentication.

If you are unable to log in.

After we confirm your identity, we will deactivate your two-factor authentication.

You can make a request to reset your two-factor authentication here.

*Once your two-factor authentication has been deactivated, we will send confirmation codes for the sake of security. If you are unable to receive this email, please confirm the following 3 items.
- Are the @bitflyer.com and @bitflyer.jp domains blocked?
- Have you made a filter for emails from bitFlyer?
- Has it ended up in your spam folder?
If none of the above solve the issue, please contact us.
I cannot remember my password.

If you are unable to log in due to forgetting your password, you can request a reset here. Enter your registered email address and then press the "Request bitFlyer to change your password" button.

If you are unable to receive SMS due to changing your mobile phone number or not having a registered mobile phone number, select “Customers who can not use SMS (may take longer to perform).” In order to ensure security, we will call you or request ID verification documents.
I would like to change my email address.

For security reasons, you are not able to change your email address or any other login related information by yourself.

Please contact bitFlyer customer support via the Contact page and select "Update my registered infomation".

If you are able to log in:

Please input your name and registered e-mail address, select "E-mail Address" under the "registration information you would like to modify" field, and fill-out all the required information.

If you are not able to log in:

Please enter your name and registered e-mail address, select “Other” under the "registration information you would like to modify" field, and input the information you wish to change.

We will then send to the new e-mail address you want to change to, further information on how to proceed.

Please confirm our e-mail and provide us with a response at your earliest convenience.

After you have submitted the necessary identification documents, and we have confirmed that you are the one that is making the request, we will then process the changes.

Depending on the status of your account, please note that we might need to call you for additional identification purposes.

We have taken these extra security measures in order to protect your assets. We apologize for any inconvenience caused and appreciate your understanding.

FAQ