I hope Moxie can share with us why this feature is disabled by default. Does Whatsapp really think the notification would quickly become very annoying for regular users? How often would someone&#x27;s closest friends really change their phones or uninstall Whatsapp? I imagine not that often for this to be a huge inconvenience, which is why I don&#x27;t understand why the setting is off by default.<p>Maybe it&#x27;s something else I&#x27;m missing, which is why it would be good for Moxie or Whatsapp to clear up this puzzling choice.<p>Also I hope both the Whatsapp and Signal teams think of ways to <i>encourage</i> security code authentication through better UI. Viber, for instance, has taken an interesting approach to encouraging easier authentication. It probably still doesn&#x27;t go far enough to make it easy enough for just about anyone to want to authenticate their contacts, but I&#x27;d like to see more of this sort of UI experimentation:<p><a href="https:&#x2F;&#x2F;support.viber.com&#x2F;customer&#x2F;portal&#x2F;articles&#x2F;2017401-viber-security-faq" rel="nofollow">https:&#x2F;&#x2F;support.viber.com&#x2F;customer&#x2F;portal&#x2F;articles&#x2F;2017401-v...</a>