Seoul, South Korea | AFP | The co-CEO of a South Korean company that owns the country’s biggest mobile messenger app stepped down Wednesday following a massive service outage that left more than 50 million without access to its widely used services for days. Kakao’s flagship messaging app  KakaoTalk is installed on around 90 percent of phones in the country and its heavily used services including maps, online payments, ride-hailing, streaming and gaming. The outage started […]