UTokyo Account

Table of Contents

What is UTokyo Account?

Notes on using UTokyo Account

  1. UTokyo Account is granted to members of the university who are systematically accepted and managed by the university. (It will not be granted to those who are not systematically accepted by the university.)
  2. The services available through the UTokyo Account vary depending on the user’s identity, affiliation and so on.
  3. To use the UTokyo Account and ICT systems that require a UTokyo Account, you must comply with the UTokyo Guidelines for Information Ethics and Computer Use. (Reference: UTokyo Policy for Information Security)
  4. If you use the system inappropriately or cause safety issues that are against the Information Ethics and Computer Usage Guidelines for using the UTokyo Account and ICT systems that require a UTokyo Account, your account will be suspended.
  5. Please refer to the information on this website for details on using UTokyo Account.

How to start using UTokyo Account

Attending the Information Security Education

UTokyo is conducting various initiatives for the improvement of information security, all of which are detailed on ”Information Security at UTokyo” page. A prime example of these initiatives is the implementation of the annual Information Security Education for all UTokyo Account holders. You will be notified when the implementation period arrives, so please ensure to pass the test.

For details about the timing and the procedure of the course, kindly refer to the Information Security Education page. Once you complete the course, you will be able to use UTokyo Wi-Fi, UTokyo VPN, and UTokyo Slack (Note: Enabling Multi-Factor Authentication for your UTokyo Account is also mandatory for UTokyo VPN and UTokyo Slack).

Relevant initial setup

Once you have completed the above tasks, please also refer to the following pages.

Sign in to the ICT systems with your UTokyo Account

UTokyo Account provides access to a variety of ICT systems. The sign-in methods vary depending on the situation.

Many of the ICT systems that allow users to sign in using their UTokyo Account are linked to each other, so that once a user has signed in with their username and password on one ICT system, the user does not subsequently need to enter the username and password to use another ICT system. This behavior is called Single Sign-On (SSO).

About passwords

Validity period of a password

If you are using Multi-Factor Authentication, your password does not expire. Otherwise, your password is valid for 397 days (1 year + 1 month) after it is changed. The expiration date of the current password can be checked from the User Menu. *Before March 9, 2023, passwords were valid for 365 days regardless of whether or not Multi-Factor Authentication was enabled (see this page for details). Passwords set before March 9, 2023 will remain valid for 365 days and will not be extended, and passwords set after that date will have a new validity period.

A password is valid for one year after it is changed. The expiration date of your current password can be checked from the User Menu.

Changing passwords

You can change your password from the “Password Change” menu on the User Menu. The password can be changed even if it has expired, so there is no need to reset or reissue a password.

If you forget your password

If you forget your UTokyo Account password, you can sign back into your account using the following steps.

Reset your password by email

If you have registered your email address in advance on one of the following, you can reset your password using that email address.

The procedure for resetting the password is as follows.

  1. Access password reset page.
  2. The following “Get back into your account” will appear. Enter “10-digit Common ID + @utac.u-tokyo.ac.jp” in the “Email or Username” field, and the text in the image below it, then press “Next”.

    When the error message “You can’t reset your own password because you haven’t registered for password reset.” appears Since your email address is not registered in the system, a notification email cannot be sent to you and therefore your password cannot be reset. Please reissue a password from the help desks. Once your password has been reissued, please register your email address in UTAS (for students) or Personnel Information MyWeb (for faculty and staff).

  3. Confirm that a part of your pre-registered email address is displayed. You will receive an email notification with a confirmation code to reset your password.
  4. When you receive the email, follow the instructions in the email to reset your password. If you do not receive the email, please check your spam folder or make sure that you are not using a different email address.
    • UTokyo Account passwords must be between 12 and 64 characters in length, include uppercase and lowercase letters, numbers, and symbols and must not include space , double quotation ", dot ., or backslash or yen mark \.

Reissue a password from the help desks

If you have not registered your email address, or if the above procedure does not work, please contact the following help desks to reissue your password.

After completing the procedures, you will receive a “Notification regarding password for the UTokyo Account” containing your initial password. Please change your initial password to a new one, referring to “Task: Change the initial password” in How to start using UTokyo Account. (You cannot use the ICT services with your initial password.)

Multi-Factor Authentication (MFA)

UTokyo Account has adopted the use of Multi-Factor Authentication (MFA). If you set up Multi-Factor Authentication, you will be asked to confirm your identity via SMS or an authentication application in addition to your password, when signing in to your account. For more information, please refer to the Using Multi-Factor Authentication for UTokyo Accounts page.

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