Received an email notification that “A new device has been used to sign in to this Nintendo Account.” The email might include information about an unknown device or geographical location.
Your Nintendo Account has been compromised or accessed by an unauthorised user.
Important: The ability to use a Nintendo Network ID to sign into an existing Nintendo Account or to create a new Nintendo Account has been discontinued. We apologize for any inconvenience. If you are having difficulties signing in to your Nintendo Account and previously used a Nintendo Network ID, information is available on accessing your Nintendo Account.
What to do
Change your Nintendo Account password.
Change the password associated to your Nintendo Account.
If you don’t remember your Nintendo Account password or log-in information, reset your password.
Sign out of all devices associated to your Nintendo Account.
Sign into your Nintendo Account on the Nintendo Account website, select Sign-in and security settings in your account profile, and select View in your Sign-in history. Select Sign out from all devices.
This will disassociate the Nintendo Account from any devices where it was previously connected. You will need to log back in on each device using the new password to associate your Nintendo Account again.
Set up 2-step verification security for your Nintendo Account.
2-step verification adds an additional layer of security that can help prevent unauthorized access to the account.
Delete any stored credit card or PayPal account information from your Nintendo Account.
If your Nintendo Account is linked to Facebook, Google, Twitter, or an Apple ID, it is recommended that you change the password for those accounts.
It is possible that one of those accounts were compromised, which allowed access to your Nintendo Account.
Visit the appropriate company's website and use their Help area for directions to update your password.
If you suspect a linked Facebook, Twitter, Google, or Apple account has been compromised, you can also unlink it from your Nintendo Account to prevent further access.
If your Nintendo Account is linked to a Nintendo Network ID, and you suspect that the Nintendo Network ID was compromised, it is recommended that you change its password.
You can change the Nintendo Network ID password on a Wii U or Nintendo 3DS family system.
If you are unable to change the Nintendo Network ID password, you can unlink it from your Nintendo Account.