WANNA ONE, EXO, BTS, NCT etc, idle personal information trading deals online. Become a social problem in Korea. Personal phone number, chat ID, un-Official SNS, passport information, dormitory address, etc. It is traded with abbreviations and so on.

* ㅇㄴlation: WANNA ONE

* ㅇ ㅅ: EXO

* ㅂ ㅌㅅ ㄴㄷ: BTS

* ㅇ ㅅㅌ: NCT

* kkt: KaKao Talk