How WhatsApp became the world's default communication app, including as a political propaganda tool, a business tool, and a private social network (Pranav Dixit/Engadget)

Pranav Dixit / Engadget:

How WhatsApp became the world’s default communication app, including as a political propaganda tool, a business tool, and a private social network  —  What was once a texting platform now runs the lives, businesses and political machinery of billions.  —  In 2014, WIRED asked me to write …