The article explains that while encrypted direct messages on X are secured, certain metadata remains unencrypted, such as the recipient and creation time. Notably, if a user logs out from their account on a device, all encrypted messages will be erased from that device, although other logged-in devices remain unaffected. When logging back in, the device can retrieve and decrypt previous conversations using existing private keys, ensuring that the content remains accessible to the user after re-logging in.
"The contents of an encrypted direct message are always encrypted, including any links, media, or files. Reactions to encrypted direct messages are also encrypted..."
"If at any time you log out from X, all messages including encrypted direct messages on your current device will be deleted; this will not impact any other devices on which you are logged in..."
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