From June 30, 2026, two-factor authentication will be required at login.
Click here for detailed instructions.
Additionally, in conjunction with the introduction of two-factor authentication, we will revise a portion of our Terms of Use as follows.
■ Main Revisions
・Standard Message and Data Rates (Chapter 1, Article 4)
Please note that standard message and data rates applied by your carrier may apply for the transmission of SMS for two-factor authentication.
・Carrier Liability Disclaimer (Chapter 1, Article 8 - Newly Added)
A clause has been added clarifying that mobile carriers are not liable for delayed or undelivered SMS messages.
・How to Opt-Out (STOP) and Opt-In (START) for SMS (Chapter 1, Article 17 - Newly Added)
For users with United States or Canadian telephone numbers, you can opt-out of receiving SMS at any time by replying "STOP" to the received message, and opt-in again by replying "START". Inquiries regarding SMS distribution will be accepted via our "Inquiry Form."
・Addition of SMS/Email Transmissions for 2FA (Chapter 2, Article 2)
We have specified that SMS (text messages) or emails containing verification codes will be sent for two-factor authentication during login as a security measure.
We will continue working to improve our security so that you can use our services with peace of mind.
Thank you for your continued support.