First discovered by computer science student Jane Manchun Wong on her account, Twitter appears to be developing a new direct messaging feature that lets you send ‘secret’ encrypted messages.
The unlaunched feature was found in Twitter’s Android application package under a “Secret conversation” option. Other messaging apps such as Signal, Telegram, and WhatsApp already feature an encrypted message option for users who want to send sensitive information.
— Jane Manchun Wong (@wongmjane) May 4, 2018
Twitter had been reportedly working on an encrypted messaging feature back in 2013, but stopped development for unknown reasons.