Jan Koum, co-founder and CEO of WhatsApp. Photo: ReutersSAN FRANCISCO: The co-founder of WhatsApp, a messaging service owned by Facebook Inc with more than 1 billion daily users, said on Monday he was leaving the company, in a loss of one of the... Jan Koum, co-founder and CEO of WhatsApp. Photo: ReutersSAN FRANCISCO: The co-founder of WhatsApp, a messaging service owned by Facebook Inc with more than 1 billion daily users, said on Monday he was leaving the company, in a loss of one of the...
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