A message saying "Failed to read the file" appears

Login history is a feature that shows information, such as the date and location of logins to your LINE Business ID. It shows the most recent 30 logins from the past three months of your account's successful login history from October 30, 2024.

You can check your login history from your profile page after logging in to your LINE Business ID. For an explanation of the items shown in your login history, see the following information.

Date
The date and time you logged in will be shown in accordance with the time zone you set.

Location
The country you logged in from will be identified and have its name shown.
Note: The country may be shown as "Unknown" or be incorrectly identified.

Device
The type of device you logged in with will be shown in the "Device/OS/browser" format. (e.g. PC/Windows/Google Chrome, Smartphone/iOS/Safari) If the device type cannot be identified, it will be shown as "Unknown."

Authentication method
Depending on your login method, you'll see one of the following messages.

• Log in with LINE account
　You'll see this message if you logged in with your LINE account.

• Log in with business account
　You'll see this message if you logged in with your email address.

• Login with 2-step authentication
　You'll see this message if you logged in with a login code sent to your registered email address after choosing to log in with your email address.

IP address
The IP address (global IP address) of the device you used when you logged in will be shown. IP addresses are identification numbers assigned to PCs and other devices that connect to the internet. For information about the IP address shown, please contact your internet service provider. If you're using the internal network of an organization (e.g. company, school), please contact the network administrator.
Note:
- Login history from PCs is sometimes shown with the PC's own IP address, but more often it shows the IP address of the server owned by the internet service provider or the company.
- The IP address shown may change depending on your internet/mobile service provider or your organization's internal network environment.

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If you see an unfamiliar login history, or receive a login notification but don't remember logging in, it's possible that a third party logged into your LINE Business ID without authorization. Please check the following information for actions to take.

Note: The following information is for users who have registered an email address to their LINE Business ID.

If you log into your LINE Business ID using only your LINE account, refer to the following Help article.

My LINE account was or may have been stolen (logged in to without my authorization)

If you can log in to your LINE Business ID:

Please change the password you set for your LINE Business ID. You can change your password on the profile page of your LINE Business ID.

If you can't log in to your LINE Business ID:

Please reset your password by selecting Reset password from the login page. An email with the subject "Resetting your LINE Business ID password" will be sent to the email address you entered. Please proceed to the password reset screen and set a new password.

If you still can't log into your LINE Business ID after trying the above method, please contact the services you're using directly.

Be advised

Make sure to set a secure password when changing or resetting it. Avoid passwords that you're using on other websites or strings of characters that are easy for others to guess (e.g. email address, name, date of birth).

As an extra layer of security, we recommend taking the following actions.

• Turn on two-step verification.

You can strengthen the security of your account by enabling two-step verification. If the status for Turn on two-step verification is turned off on the profile page of your LINE Business ID, select Turn on two-step verification. When you log in, you will be asked to enter a verification code sent to your registered email address.

• Change your email address

If you have an email address that you don't use (or rarely use) for other companies' services, we recommend changing the email address registered to your LINE Business ID to that one. You can change your email address on the profile page of your LINE Business ID.

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