"WhatsApp fixed a bug that allowed malicious users to save pictures and videos that were supposed to be viewed only once and then vanish.
In September, TechCrunch reported that a bug in the implementation of the “View Once” privacy feature allowed people using WhatsApp’s browser-based web app to display and then keep the picture or video. The View Once feature is designed to prevent recipients from saving, sharing, forwarding, copying, and even screenshotting or screen recording media sent as “View Once,” given that in normal circumstances, the pictures or videos disappear after being viewed.
On Friday, WhatsApp spokesperson Zade Alsawah told TechCrunch that the company has rolled out a longer-term fix that resolved the issue."
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