I am curious to know how do companies like Facebook control this kind of activity on WhatsApp where there is end-end encryption. I see a lot of propaganda on Whats App being circulated everyday and people keep forwarding such messages into various groups.
Can you seriously trust WhatsApp's security now that it belongs to Facebook?
Of course, there's still the flaw of backups to Google Drive being unencrypted. But fortunately that's not the default setting.