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Security

Why does LINE utilize the contact information on my Smartphone? toggle
When users carry out the procedures listed below, LINE will access the information required in the users’ contacts list/address book to make it easy for users to find their close friends: (Only the telephone numbers and mobile email addresses in your contact information will be transferred to our servers. All information will be encrypted.)

1. At the registration screen, when users select OK at the “Your Address Book will be sent to LINE’s server” dialogue.
2. When the Auto Add Friends function is switched ON in Settings or when users push the circular icon next to the Last Auto Add dialogue, and then select OK at the “Your Address Book will be sent to LINE’s server” dialogue.

LINE will add mutual contacts to your Friends list automatically. If only one of you has the other as a contact, the one who has the contact information will be added to the other's Friend Recommendations list, while the recommended person will be added to the other's Friends list.

Your own phone number, and other information obtained from your contacts list/address book (phone numbers and email addresses) will not be disclosed and will be protected as follows:

1. Your contact information will be used only if you agree to the terms & conditions of LINE when signing up. The terms and conditions describe when and how LINE will use your personal information.
2. If you agree to allow LINE to find your friends, the telephone numbers and mobile email addresses in your contacts list/address book will be sent to our servers.
At this time, the required contact information will be encrypted and securely transferred to our server.
3. We use encrypted text when comparing your information with existing user information.

Please visit the following web page for more detailed information on our privacy policy:

http://line.naver.jp/line_rules/en/

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How will my contact information be stored on the servers? toggle
When you agree to allow LINE to find your friends, the information sent to our servers from your contact list (phone numbers and mobile email addresses) will be encrypted and securely stored on our servers. For more information on our privacy policy, please click on the link below.

http://line.naver.jp/line_rules/en/

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Can my phone number, LINE ID, or email be seen by other people? toggle
LINE will never disclose your registered phone number, ID or email address to any third parties. Such information will only be disclosed if you do so yourself.

Only your display name, profile image and 'What’s Up?' messages on LINE are available to be seen by other users.

We hope this helps!

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Can a third party 'peek' what I type in the chat? toggle
No, users who are not in your chat cannot see what you type. LINE is secure.

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Someone is impersonating me on LINE. toggle
If users select to send their phonebook data to LINE’s servers upon registering to LINE, phone numbers in their phone books will be used to search for their friends who are LINE users.
If we find those users, they will appear in the user's [Friends] list under the names registered in the user's phonebook.

Therefore if you have stopped using your number and someone else obtains it, a third party may be registered on your friends' [Friends] list under your name.

Please ensure that your friends do not have you registered under multiple phone numbers/mobile email addresses within their phonebook, and also check that they have not saved you under any details which are out of date such as previous phone numbers.

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I received a login notification but don't remember logging in toggle

Whenever you log in to the PC/iPad version of LINE or LINE STORE, you'll receive a login notification message. If you received a notification but do not remember logging in, we recommend doing the following to strengthen your security.

 

• Disable login from other devices

If you turn off the Allow Login setting, no one will be able to login to your account from the PC or iPad version of LINE. Also, by turning this setting off, any other device logged in to your account will be automatically logged out.

 

To change the settings:

1. Tap "..." > Settings > Accounts.

2. Turn Allow Login OFF.

 

• Change your password

For the steps to change your password, see here.

If you received a message saying you logged in to a smartphone, see here.

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I received a chat message saying I logged in to LINE on a smartphone toggle
When you log in to your account using your email address, you'll receive a notification chat message from LINE.

If you received a notification but don't remember logging in, it is possible that a third party used your email address and password. Please see the following information that corresponds to your situation.

• If you can use your LINE account:
A third party may have tried to log in to your LINE account fraudulently on a different smartphone. We recommend changing your password right away to make sure you are the only one who can access your account.

For the steps to change your password, see here.

• If you can no longer use your LINE account:
It is possible that a third party is using your account.  You may be able to use your account again by logging in to it on the smartphone you've been using LINE on within 24 hours of receiving the login notification message.

To log in to your account:
1. Tap Log in or LINE User Login.
2. Enter your registered email address and password, then tap OK.
Note: After logging in, please change your password.

If you received a message saying you logged in to the PC/iPad version of LINE or LINE STORE, see here.

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