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Manage Unknown LINE Contacts: Secure Your Account Today

Quick Summary

  • Control LINE friend additions
  • Review privacy settings regularly
  • Block and report unwanted contacts

Encountering unknown individuals in your LINE contacts can be unsettling. This comprehensive guide helps you understand why these unexpected connections might appear and, more importantly, how to take control of your LINE account. We'll show you how to adjust key settings to enhance your digital portal experience and safeguard your privacy, ensuring your online interactions remain secure and enjoyable.

LINE offers various features designed to help you connect with friends and family seamlessly. However, some of these functionalities, if not properly managed, can inadvertently lead to unknown users appearing in your friend list or sending you messages. This expert walkthrough provides actionable steps based on official LINE guidance to manage these situations effectively.

Understanding Unwanted LINE Connections

Locating Your LINE Privacy Controls

  1. To access your privacy and friend management settings, launch the LINE app on your device.
  2. Tap the Home tab, typically located at the bottom left of the screen.
  3. Find and tap the Settings icon (a gear symbol), usually positioned in the top right corner.
  4. From the Settings menu, select Friends to manage friend-related options.
  5. Alternatively, navigate to Privacy to adjust broader privacy settings, including message filtering and ID search permissions.

How LINE Connects You (and Sometimes Others)

Managing Unexpected Friend Additions

⚠️ Unexpected contacts appear in my friend list or 'People you may know'.

Cause: Your device's address book is synced with LINE (Friends auto-add is on), or others can add you using your phone number (Allow adding by phone number is on). Someone might have your LINE ID or QR code, or you might be in a shared group.

Solution: First, navigate to Home > Settings > Friends. Turn off Friends auto-add and Allow adding by phone number. For 'People you may know', if it's based on ID, go to Privacy and turn off Allow ID search. Consider updating your QR code in privacy settings if it has been widely shared. If a specific unknown person is already added, you can Block them from their profile.

⚠️ Receiving messages from unknown people.

Cause: Your privacy settings allow messages from non-friends, or the sender obtained your contact details through a shared group or other means.

Solution: We know receiving unsolicited messages is frustrating. For immediate relief, enable Message filtering in Home > Settings > Privacy. This will block messages from anyone not on your friend list. If the messages are abusive or spam, Block the sender and then Report their account to LINE support. Do not click on any suspicious links within the messages.

⚠️ An unknown LINE Official Account is sending messages.

Cause: LINE Official Accounts can send 'Notification Messages' to users whose phone numbers they have, even if you haven't added them as a friend.

Solution: These are often legitimate service notifications. If you wish to stop receiving them, you can Block the specific Official Account. You can also review your Privacy settings to ensure your phone number is not overly exposed, though Notification Messages often bypass regular friend status.

Securing Your LINE from Strangers

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🎧 Official Support & Help Center

For further assistance, you can access the LINE Help Center within the app via Home > Settings > Help > FAQ・Inquiry, or visit the official LINE Help Center website.

Your Questions About Unknown LINE Users Answered

Q: Why are unknown people appearing in my LINE friends list or 'People you may know' section?

Unknown individuals often appear due to LINE's friend-finding features. This can happen if Friends auto-add is enabled, syncing your phone contacts, or if Allow adding by phone number is active, letting others add you. Your LINE ID or QR code might also have been shared, or you could be in a shared group.

Q: How can I stop unknown people from adding me automatically on LINE?

To prevent automatic additions, go to Home > Settings > Friends and switch off Friends auto-add and Allow adding by phone number. Additionally, in Home > Settings > Privacy, ensure Allow ID search is disabled if you don't want to be found via your LINE ID.

Q: What should I do if an unknown person sends me a message on LINE?

If you receive a message from an unknown person, it's best not to reply. You can enable Message filtering in Home > Settings > Privacy to block messages from non-friends. For persistent or suspicious messages, Block the user immediately and then Report their account to LINE to protect yourself and others.

Q: Can someone add me on LINE if they only have my phone number?

Yes, if your Allow adding by phone number setting is enabled within Home > Settings > Friends, anyone who has your phone number in their device contacts and is also a LINE user can automatically add you.

Q: How do I block an unwanted contact on LINE?

To block an unwanted contact, open their chat or profile, tap their profile picture or name, and then select the Block option. This will prevent them from sending you messages or seeing your updates.

Q: Is it possible to remove myself from others' 'People you may know' list?

While you cannot directly remove yourself from someone else's 'People you may know' list, disabling Allow adding by phone number in Home > Settings > Friends and frequently updating your QR code in Home > Settings > Privacy can significantly reduce your visibility to strangers.

Wrap Up

By actively managing your LINE account settings, especially those related to friend additions and privacy, you can maintain a safer and more controlled communication environment. Take advantage of the tools LINE provides, like blocking and reporting, to ensure your interactions are always positive. Your personal online experience is yours to secure.

PS

Portal Support Team

This guide was reviewed and verified by our internal technical support experts in October 2026. We constantly monitor official portal updates to ensure you have the most accurate and secure login instructions.