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 strongest advocates for privacy inside Facebook.
Jan Koum’s plan to exit comes after clashing with the parent company over WhatApp’s strategy and Facebook’s attempts to use its personal data and weaken its encryption, the Washington Post earlier reported, citing people familiar with the internal discussions.