(From BBC News)
WhatsApp chief executive Jan Koum is to quit the popular messaging service he co-founded.
In a post on Facebook, he said he was “taking some time off to do things I enjoy outside of technology”.
However, according to a Washington Post report earlier on Monday, Mr Koum had clashed with parent company Facebook over WhatsApp’s strategy.
He also objected to Facebook attempts to use WhatsApp’s personal data and weaken its encryption standards.
Mr Acton left the company in November and has joined other former executives in criticising Facebook. In March he endorsed the #deletefacebook social media campaign that took off after reports of Cambridge Analytica using Facebook’s user data came to light.