Help Center

About Letter Sealing toggle

Letter Sealing is a feature that provides End-to-end encryption (E2EE) for chat room messages. E2EE is a communication system designed so that messages saved on our servers are encrypted and cannot be read by anyone except the sender and receiver of the message.

Once the sender and receiver have both turned on Letter Sealing, they will be able to start sending messages, but with added security.

If you use LINE for PC with Letter Sealing enabled on the smartphone version of LINE, you will be required to verify your identity the first time you send a message. For information on how to verify your identity, see this Help article.

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Using Letter Sealing on LINE for PC toggle

To use LINE for PC with Letter Sealing, make sure you have Letter Sealing turned on in the smartphone version of LINE, then verify your identity by following the steps below.

Note: You need to have your smartphone to complete the verification process.

1. Log in to LINE for PC.

2. Open a chat from the Chats tab.

3. Click Verify my identity to get a six-digit verification code.

4. Enter the six-digit verification code on the identity verification screen that appears in the smartphone version of LINE.

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The Letter Sealing identify verification screen isn't appearing toggle

If you're trying to verify your identity so you can use Letter Sealing on LINE for PC, but the verification code entry screen isn't appearing in LINE on your smartphone, restart the smartphone app and try verifying your identity again by referring to this Help article.

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