Re:Saudi lifting ban on Skype, WhatsApp calls, but will moni...
by ihattendorf on Friday September 22, 2017 @12:01PM
(#15313333)
It's Facebook that has access to this metadata.
> While the metadata is encrypted during transit, phone numbers, timestamps, connection duration, connection frequency, as well as user location are being stored on the company’s servers [0]
Either way seems pretty hard without direct help from whatsapp.