Meta fixes easily bypassed WhatsApp ‘View Once’ privacy feature
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Just a moment...
https://www.bleepingcomputer.com/news/security/meta-fixes-easily-bypassed-whatsapp-view-once-privacy-feature/
https://www.bleepingcomputer.com/news/security/meta-fixes-easily-bypassed-whatsapp-view-once-privacy-feature/
People have done that for ages. Pic taken of the screen with another device, try and block that now. Basic rule, if you send it out assume it's no longer private.