Co-founder Jan Koum besides his company's logo

Users of the renowned global application WhatsApp have hit the one billion mark in January this year, after being sold to Facebook for billions of dollars.

According to Forbes, one seventh of the global population is currently linked to WhatsApp, an innovation founded by Jan Koum, Brian Acton and Jim Goetz, currently valued at US$19 billion.

WhatsApp Inc was incorporated in Mountain View, California on February 24, 2009, on Kuom’s birthday.

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Born and raised in Kiev, Ukraine, Kuom studied Engineering at the San Jose State University in the United States of America.