WhatsApp users have noticed that the messaging app will be changing its privacy policy and if people don't agree they will no longer be able to use the app.
The app, which is owned by Facebook, has two billion active users, many of which have already had a pop-up message asking them to share their data with Facebook.
Mark Zuckerberg who owns both WhatsApp and Facebook, as well as Instagram, is hoping to merge all three brands at some point.
The notification states that failure to agree with the changes by 8 February will result in the user no longer being able to use the app.

The message gives the user a chance to either click 'agree' or 'not now' - but does not let them decline the changes.
In the small print, it states that the cut-off date for agreeing to the terms is 8 February - any later and you won't be able to access the app until you agree.
The changes to the privacy policy include new sections on WhatsApp's new business messaging service, transactions and payments data, location information, and the data WhatsApp shares with Facebook.
"Privacy policy and terms updates are common in the industry and we're providing users with ample notice to review the changes."
Meanwhile, Apple has revealed the ways in which WhatsApp tracks the data of users and stores some pieces of detail about users around the world.