Jan Koum, the CEO and cofounder of Facebook-owned WhatsApp, confirmed Monday that he is leaving the company. In addition to running WhatsApp, Koum also served on Facebook's board. "I'm leaving at a time when people are using WhatsApp in more ways than I could have imagined," Koum wrote in a Facebook post Monday. Brian Acton, the other WhatsApp cofounder, left Facebook last year to launch a non-profit. The Facebook acquisition turned Koum and Acton into billionaires.

Source: CNN April 30, 2018 21:56 UTC