From the FAQ[1]: &quot;WhatsApp communication between your phone and our server is encrypted.&quot;<p>[1] <a href="http:&#x2F;&#x2F;www.whatsapp.com&#x2F;faq&#x2F;general&#x2F;21864047" rel="nofollow">http:&#x2F;&#x2F;www.whatsapp.com&#x2F;faq&#x2F;general&#x2F;21864047</a>