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I got a message saying another device's LINE app requested to verify my phone number

Important: The contents of this article only apply to LINE accounts created with LINE versions earlier than 13.11.0.

When the phone number registered to your LINE account is used in the phone number verification of another account, you'll receive a message saying "IMPORTANT, A request to verify your phone number was made from another device's LINE app."

If you didn't verify your phone number, you may have received this message because:

• A third party mistakenly entered your phone number to verify their account; or

• A third party tried using your phone number to verify an account.

Be sure not to share the verification code you receive with anyone else.

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Starting voice/video calls with official accounts

You can make voice and video calls to LINE official accounts in order to make reservations or ask questions.

To make a call from an official account's profile page:

1. Check the profile of the official account you want to call and tap the phone icon.

Note: If the official account can use voice calls, you'll see "Free" under the phone icon.

2. Tap Start call.

To make a call from a chat:

1. Tap Call in the call request message you receive from the official account.

2. Tap Start call.

Call requests may only be valid for a limited time. For details see About limited-time call requests.

If a call seems inappropriate or does not match the content of the official account, please block or report the account.

Note:

- If you're using a 3G, 4G, or 5G network, packet communication charges may apply during a call. We recommend using a flat-rate data plan.

- If call quality is low, try using a Wi-Fi connection.

For information on how to switch from a voice call to a video call, see the following Help article.

Switching to a video call when calling an official account

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I can't automatically log in to a website with LINE

Depending on your usage environment, a login error may appear when you try to automatically log in to a website with LINE.

Note: The auto login feature uses your account information from the LINE app to log in to websites without entering your email address and password (as long as you're logged in to your account in the LINE app on your device).

You may be able to resolve the issue using one of the following methods.

• If you're trying to access a website from X (formerly Twitter) or another app, copy the link and open it in your web browser.

• If you have private browsing enabled, follow the steps for your browser to disable it and try again. Also, try allowing cookies if they're being blocked.

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Staying safe when making calls on LINE

We have received reports of blackmail occurring due to abuse of the video call feature.

Please take care not to make video calls of a private nature that could put you at any kind of risk, and refrain from calling or accepting calls from anyone you do not know or trust.

Example of how blackmail can occur:

Someone is persuaded to make a video call of a revealing or sexual nature. The other caller records the video session and threatens to show it to the person's family and friends if they don't pay money.

If you are asked to do anything that violates your privacy or find the content to be inappropriate during a call with an official account, please block and report the account.

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About limited-time call requests

If a call request from an official account says it will expire after 30 minutes, it means you need to make your call to the account within 30 minutes of receiving the request.

After 30 minutes have passed, you will no longer be able to use a call request. In this case, please ask the official account to send you a call request again.

Once your voice or video call has started, you can keep talking with the LINE official account for as long as you like.

Note: Before starting a voice/video call, check the name, profile, and verified badge color of the official account to make sure it is authentic.

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Can I log in to a website using a different LINE account than the one I use on my device?

If you want to automatically log in to a website using the Log in with LINE button, you can only use the account that the LINE app is currently logged in to on your device.

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There was an unauthorized login to my account through a web service

There has been an increase in cases of unauthorized logins that we believe are due to the use of easy-to-guess passwords.

If someone has logged in to your LINE account through a web service, it means they are able to log in to any other services linked to your LINE account (including both those offered by LINE and other companies).

Note: "Logging in through a web service" means using your email address and password registered to LINE to log in to another service linked to your account via a web browser (and not the LINE app).

If someone knows your information, it is also possible that they could use your email address and password to make unauthorized logins to other services that are not related or linked to LINE.

If you found that someone has made an unauthorized login to your account through a web service, make sure to do the following.

• Change your LINE account's password.

• Turn on Two-factor authentication.

Follow the steps to strengthen security for web logins.

• Block the official accounts of the service that was used.

In some cases, when you log in to a web service with LINE it adds that service's official account as a friend. Go to the Home tab > Friends > Official accounts and block the account of the relevant service if it was added.

• Deauthorize the LINE app from the web service that was used.

The web service that was used may be linked to your LINE account. Deauthorize the service by selecting the Home tab > Settings > Account > Authorized apps > the relevant service > Deauthorize > OK.

• Log out from the website of the service that was used.

Changing the password of your LINE account will not automatically log you out of any web services. Also, deauthorizing the LINE app from a service may not log you out in some cases. Make sure to log out of the relevant web service in addition to taking the measures listed above.

Note: With some companies' services, you can see a list of which devices are logged in. If there are any devices that are logged in to the service, make sure to log out from those devices in addition to logging out from the service's website. For more details on how to do so, please contact the relevant service provider directly.

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About LINE official accounts

LINE official accounts offer a variety of information about businesses, celebrities, and more. A gray, blue, or green icon will appear on the left of the LINE official account name at the top of the chat.

Adding an official account as a friend lets you ask questions via chat and get access to other convenient services.

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Adding LINE official accounts as friends

Refer to the following steps to add a LINE official account as a friend.

To select an account from Find official accounts:

1. Tap the Home tab > Friends > the Official accounts tab > Find official accounts.

2. Tap the search field at the top of the screen and search for an official account, or choose an account displayed under a category (e.g. New accounts, Trending accounts) and tap Add.

To search for an official account by ID:

1. Tap the Add friends icon at the top right of the Home tab > Search > ID.

2. Search for the official account you want to add by entering @ followed by the account's ID.

Note: Official account IDs include the "@" symbol.

3. Tap Add.

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I got a message about a login/unsuccessful login attempt to my account with LINE for PC or iPad

These messages are sent when your account tries to log in to LINE for PC or iPad.

If the message you receive says that the login attempt was unsuccessful, it means there was an attempted login to LINE with your registered email address but it failed because your password was entered incorrectly.

The message saying that a login was detected lets you know when your account has been logged in to with one of the following methods:

• An email address/password

• A QR code

• Your device unlock method

If you received this message even though you did not try to log in to LINE, it means that someone else tried to log in using your email address and password. If you don't remember logging in yourself, see this Help article.

When Allow login is turned off in your LINE settings, your account cannot be logged in to with LINE for PC or iPad, even if your email address and password are entered correctly.

Note: You'll still receive a notification message if your password is entered incorrectly on the login screen.

For more information about the Allow login setting, see this Help article.

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I got a message saying my version of LINE for PC is no longer supported

When you try logging in to an older version of LINE for PC, you may receive a message saying "The version of LINE for PC you are attempting to log in to is no longer supported." In cases like this, you won't be logged in to LINE for PC.

If you're trying to log in to LINE, please update LINE for PC.

If you received this message but aren't trying to log in, it's possible that a third party is trying to log in to your LINE account using your email address and password.

See this Help article if you received a notification but don't remember logging in.

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I got a message saying someone logged in to my LINE account on another device

This message is sent when the information you registered on LINE is used to transfer or log in to your LINE account.

Please see this Help article for details about checking what devices are logged in to your LINE account and LINE services.

If you received this message but aren't trying to log in, it means a third party is trying to log in to your LINE account using your email address and password.

See this Help article if you received a notification but don't remember logging in.

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I got a notification about a detected login

When you've logged in to a site that uses LINE Login v2.1 and log in to another site using Single Sign On (SSO) authentication, the LINE official account will send you a notification as a security measure.

Note: SSO is an authentication shortcut that lets you log in to websites without entering your email address and password by using information from a website you've already logged in to. This feature may be omitted if the LINE app is already installed on your device.

If you don't remember logging in to the service or site mentioned, log out by using the link in the notification message.

Note: For sites that do not use LINE Login v2.1, you'll just receive a regular login notification.

SSO type login notifications will appear as one of the messages below.

Note: The first sentences in these messages may not appear.

For successful logins:

"We've detected a login to {service/site name} on {iPad, Mac etc.}.

IP address: {ww.xxx.yyy.zzz}

Location: {country/region}

If this wasn't you, you can log out here: https://line.me/R/nv/connectedDevices/

We also recommend changing your password via the following link: https://help.line.me/line/?contentId=20000062

For unsuccessful logins:

"We've detected an unsuccessful login attempt to {service/site name} on {iPad, Mac etc.}.

IP address: {ww.xxx.yyy.zzz}

Location: {country/region}

If this wasn't you, you can check which devices are logged into your account here: https://line.me/R/nv/connectedDevices/

We also recommend changing your password via the following link: https://help.line.me/line/?contentId=20000062

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Switching to a video call when calling an official account

To switch to a video call when calling a LINE official account, follow the steps below.

Note: Before starting a voice/video call, be sure to check the official account's name, profile, and verified badge color.

1. Start a call from the official account's profile page or chat.

2. On the voice call screen, tap the video camera icon.

If a call seems inappropriate or does not match the content of the official account, please block and report the account.

Note: If the LINE official account administrator has not allowed video calls in their settings, you will not be able to switch to a video call.

For more information on starting calls, see this Help article.

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