In fact, the messages although displayed are not considered displayed for purposes of the self-delete timer hence a message may remain on display beyond the time set by the sender, and may permit a full chain of custody of the message itself until and unless the sender deleted them.Īdditionally, message previews outside of the app may also appear on the Lock Screen, the Notification Center or in the form of Banners elsewhere that do not seem to be prevented on the sender side. Pro size iPhone screens with default font size) up to several hundreds of characters (macOS) are displayed without the security measure to notify the sender of screenshotting or screencasting done by the user in receipt. The chat list, with any messages shown in preview, may be screenshot or screencast without a system notification presented to the sender of the breach of security implied in the choice of using disappearing messages.ĭepending on different factors (size of screen, orientation, system font size settings etc.), anywhere between ~50 (i.e. ![]() However, text-based messages appear not only in the message thread, like in Wickr or other messaging protocols, but, to a varying degree, a preview of them in the chats’ list as well. ![]() Signal is armed with measures to instil a sense of privacy in users by preventing undisclosed screenshotting and screencasting message threads, and by enabling the sender to set their text, audio and video-based messages to disappear at a set time.
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