How Bluesky draws its logo on screenshots

An investigation into how the Bluesky iOS app makes its logo appear only in screenshots, not in the live app. The trick uses a UITextField with isSecureTextEntry set to true, rendering the actual button content into the field's layer so iOS blanks it during screen switching but the logo 'leaks through' when a real screenshot is taken. The technique originates from an expo-privacy-sensitive package by developer mozzius, and similar approaches are used by Telegram and Signal for their secret/disappearing chat screenshot protections.

Source: https://timmarinin.net/2026/bluesky-screenshots. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.