On Android, go to Settings > Apps > WhatsApp > Permissions. Revoke "Storage" permission if you don't need to save media. This prevents local cache files from being read by third-party viewer apps.
The proliferation of fake viewers speaks to a universal human trait: the urge to see what is just out of reach. But in WhatsApp’s architecture, privacy controls are not a lock to be picked—they are a server-side wall. And that wall holds. Whatsapp Dp Viewer
Go to WhatsApp . Set it to "My Contacts" or "Nobody." On Android, go to Settings > Apps >