The co-founder of WhatsApp — the messaging app that Facebook bought in 2014 — is leaving the company, CNBC reported.
Jan Koum said in a Facebook post on Monday that it was time to "move on."
"I'm taking some time off to do things I enjoy outside of technology, such as collecting rare air-cooled Porsches, working on my cars and playing ultimate frisbee," he said in a statement. "And I'll still be cheering WhatsApp on – just from the outside. Thanks to everyone who has made this journey possible."