Starting November 10, 2026, we have been sending an email with the subject “[Important] Please Strengthen Your Security (About Setting Up Two-Factor Authentication)” to everyone who has a viviON ID.
This is an official notification sent by our company. We apologize for any concern or inconvenience this may have caused.
■Why you received this email
A viviON ID is an ID that can be used across the various services provided by viviON, including DLsite, Ci-en, comipo, and nijigame.
This notification has been sent to everyone registered with a viviON ID.
(※To be added after confirmation: Even if you have canceled your account with the individual services, your viviON ID may still remain.)
■About the sender
The email in question was sent from one of the following addresses:
・info (at) vivionid.com
・mg (at) dlsite.com
※“(at)” represents @.
The displayed sender information may be spoofed. If you have any concerns, please access the site directly using the link below or your browser bookmark, rather than using a link in the email.
■For safe verification
・We will never ask for your password by email or through an inquiry.
・Two-factor authentication is recommended, and we are not asking you to set it up by a specific deadline.
■Setting up two-factor authentication
・Settings page: https://login.dlsite.com/user/self/two-factor
※The viviON ID login page is login.dlsite.com. Even if you use a service other than DLsite, you can set it up from this page.
・Setup instructions (Help): https://help.vivionid.com/hc/ja/articles/55940840870553
■If you wish to cancel your account
・How to cancel your account (Help): https://help.vivionid.com/hc/ja/articles/48273682590489
If you are having difficulty canceling your account because you cannot log in or have not received an email to reset your password, please contact us using the inquiry form below.
・Inquiry form: https://help.vivionid.com/hc/ja/requests/new
“Inquiry category”: About user registration & About registered information
“Inquiry type”: About canceling your account
※Please enter your registered email address in the email address field.
※Please do not enter your password.
We will send a confirmation regarding the cancellation of your account to your registered email address.
【Please confirm the following before canceling your account】
Once you cancel your viviON ID, you will no longer be able to log in to any of the services, and your account cannot be restored.
You will also no longer be able to view or download purchased works or use any points you have.