The new feature checks the links, messages and images circulating between users, and in the event that one of your friends forwards a message suspected of validity to you, it will display a magnifying icon next to it.
When you click on that icon, WhatsApp displays a message stating that the message will be searched across the web by uploading its content from text and image to Google.
By agreeing to the process, the Google search engine opens and searches for the message that you received to find useful results about it and expand on the topic more to know whether it is true or false.
Currently the feature is available in a limited number of small countries to try it before expanding it to more countries.
This step is part of Facebook’s integrated efforts to combat misinformation on all its services. WhatsApp had restricted the number of times messages were forwarded to make the task more difficult for rumors.
The Next Web