Many South Korean users switched from KakaoTalk to Telegram in October 2014.
The move followed revelations and concerns about South Korean government surveillance and monitoring plans. Telegram, which emphasized privacy and secure communication, became an attractive alternative for people worried that conversations on the country’s dominant messaging platform could be examined or requested by authorities.
KakaoTalk was not a minor service that happened to lose users: it was South Korea’s leading mobile messenger and a major part of everyday digital life. That made the migration especially notable and helped turn Telegram into a prominent destination for privacy-conscious Korean users during the controversy.
The episode is sometimes confused with later Telegram growth caused by outages, platform-policy disputes, or political events in other countries. Those were separate surges. This question refers specifically to the October 2014 South Korean exodus, and the app users left was KakaoTalk.