For a More Secure Experience
2018.04.25
Here you can find information on LINE's security features, how to register your information, and several points we'd like you to keep in mind in order to ensure the safety of, and your continued access to, your LINE account.
What are LINE accounts?
-LINE accounts can be created by registering a phone number or a Facebook account.
-LINE accounts are restricted to one account per device (on which the smartphone version (iOS or Android) of the LINE app has been installed).
Safe use guidelines
LINE provides multiple security mechanisms to ensure the safety of your LINE account.
Please review the following items to ensure that you will be able to continue to use your account.
Have you registered your telephone number?
Yes
No → Please register your telephone number now. (How to Register)
If you don't register...
You may lose the ability to continue using your account when changing devices.
If you have already registered a phone number which is not yours, another person who purchases that phone number may change your LINE settings, and you may suddenly lose access to your account.*1
*1: If you have registered an email address, you can recover your account by logging in again on the same device. However, once this has happened, all of your friends, groups, and chat history will be deleted. If you have not registered an email address, your account will be deleted.
If no telephone number has been registered, the account cannot be recovered if the device's OS is reset, or if the user changes to a new device due to losing an old one.
Do you still have access to the registered email address?
Yes
No → Please register an email address that you currently have access to. (How to Register)
If you don't register...
You may lose the ability to continue using your account.
Do you remember your password?
Yes
No → Please set your password. (Setting a password)
If you don't...
You may be unable to transfer your account.
Have you set a password different from one you use on other services?
Yes
No → Please set your password to something different from other services. (Setting a password)
If you don't...
Your account may be stolen.
Beware of account fraud! What to do if you encounter any of the following situations:
[Situation 1] A friend asks for your telephone number and PIN
In no case should you tell your PIN to another person. If you do, your account may be stolen.
It's highly likely that this friend's account has already been stolen.
[Situation 2] You've received an email claiming to be from LINE
They are trying to steal your account. Do not click on any links in the body of the email. If you open a link by mistake, close the browser immediately. Even if you are shown a screen that appears to actually be from LINE, your account can be stolen if you enter your email address, password, and PIN. LINE will never suddenly contact you over email, iMessage, SMS, MMS, or through any such means.
[Situation 3] I received a strange chat message from a friend's account asking for me to buy Webmoney.
Do not reply to this message. It's highly likely that your friend was scammed and their account has already been stolen.
When you have an opportunity, please contact this friend through another means of communication(*2) and let them know to contact LINE Customer Care.
*2: There are cases in which both the user's LINE and Facebook accounts have been stolen, so please be careful when contacting the friend.
If you cannot get in touch with the user, please report the account. (Reporting)
[Situation 4] If an unknown or suspicious account is sending advertisements (SPAM) or other similar behavior, please report the account. (Reporting)
After reporting, enable message filtering. (Enable the following setting: [Settings] > [Privacy] > [Filer messages])
[Situation 5] If you receive a notification for a failed login that you don't remember, please change your password. It's possible that your account is being targeted and someone is attempting to log in.
(Checking and setting your telephone number, email address, and password)
[Situation 6] Upon receiving a notification of a successful login that you were not aware of, check your logged in devices and log out any devices that you are not familiar with. (Logging out logged in devices)
Please change your password. An attacker already knows your password.
(Checking and setting your telephone number, email address, and password)
Please generate a new QR code.
Other matters related to account security
-iOS: https://help.line.me/line/ios/categoryId/20000012/3/
-Android: https://help.line.me/line/android/categoryId/20000012/3/
Features
Checking and setting your telephone number, email address, and password
-iOS: https://help.line.me/line/ios/categoryId/20000012/3/
-Android: https://help.line.me/line/android/categoryId/50000436/3/
Reporting
-Reporting the other party in a LINE chat room
-1) Open the chat with the party you wish to report
-2) Tap the [v] symbol in the upper-right-hand corner
-3) (iOS) Tap [Settings] (Android) Tap [Chat Settings]
-4) Tap [Report]
-5) Choose the type of report and tap on [Agree & send]
Report Timeline posts
1) Tap on [...] in the top-right corner of the post you wish to report
2) Tap [Report]
3) Choose your reason for reporting the post and tap on [Agree & send]
Report Timeline comments
1) Tap and hold on the comment you wish to report
2) Tap [Report]
3) Choose your reason for reporting the post and tap on [Agree & send]
Logging out of logged in PCs or devices
-[Settings] > [Account] > [Devices] > [Log out]
Changing devices
-Step 1: Backup your chats. (Instructions: iOS / Android)
-Step 2: Confirm that the registered telephone number is yours and that you have a sim capable of receiving SMS messages.
-If not, please register a telephone number that is capable of receiving SMS messages.
-If you do not have a telephone number capable of receiving SMS messages, please link a Facebook account.
-Step 3: Check the registered email address and password. (Instructions: iOS / Android)
-Step 4: If any of the following cases apply to you, enable [Allow account transfer] (under [Settings] > [Account transfer])
-Case 1: You have not registered a phone number and have created an account by linking with Facebook.
-Case 2: You will be changing your mobile device and your phone number will change at the same time.
Please note:
-As a matter of precaution, we ask that users changing their device together with their phone number keep the device that can receive SMS messages on the old telephone number until the account is completely transferred.
Reference: http://official-blog.line.me/ja/archives/53494977.html (Japanese only)
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