WhatsApp claims it does not affect the privacy of your messages
However, WhatsApp has now categorically addressed the concerns of the users. WhatsApp has said that the messaging app can neither see your private messages nor hear your calls, and neither can Facebook. It does not keep logs of who everyone is messaging or calling. The Facebook-owned messaging app cannot see your shared location and neither can Facebook. WhatsApp does not share your contact list with Facebook. Contrary to the rumors, the groups remain private. “We use group membership to deliver messages and to protect our service from spam and abuse. We don’t share this data with Facebook for ad purposes. Again, these private chats are end-to-end encrypted so we can’t see their content,” WhatsApp said in the blog.