KakaoTalk chat app boss quits after child porn row

The co-founder of South Korea’s most popular chat app has resigned after being accused of failing to prevent child abuse imagery being spread via the service.
Kakao Corp announced Lee Seok-Woo’s departure a week after he was charged, but not detained, by prosecutors.
Mr Lee had been in charge of the KakaoTalk app until August, when he moved to an advisory role.
The company says that its chat app has more than 100 million users.