IU tracks over-the-line malicious commenters to the end, urgently seeks social-media data disclosure from U.S. court

IU, a singer and actress, has filed a request with a U.S. court to identify the person behind malicious posts targeting her.

IU launches an all-out effort to identify malicious commenters through a U.S. court According to EDAM Entertainment and Dispatch reports on the 20th, IU’s side filed a request for a procedure for evidence disclosure (28 U.S.C. §1782) against Meta with the U.S. District Court for the Northern District of California on the 15th. Evidence disclosure is an international judicial assistance mechanism provided for under U.S. federal law, and refers to a procedure in which a U.S. court allows U.S.-based companies or individuals to secure evidence materials they hold for a trial being conducted or planned overseas. After identifying A, the person who wrote false posts on her Threads account, IU’s side took these steps in order to continue legal action in South Korea.

From insulting the deceased to mocking tragedies… 52 made-up posts that went too far According to the application IU submitted, the malicious poster, A, wrote a total of 52 false posts between March and October 2025, seriously damaging her honor and reputation. The posts in question included allegations of plagiarism surrounding IU, claims that she was represented by a Chinese national or Chinese capital, and 〈had been badly fooled〉 references to a failure in overseas box office performance. In addition, it is reported that many malicious rumors were included, such as baseless claims that IU used deceased fellow celebrities — including the late Sulli, Goo Hara, and Jonghyun — for promotional purposes, as well as claims that she released songs mocking the Itaewon tragedy and the Sewol ferry disaster.

More forceful follow-up steps foreshadowed under a no-leniency zero-tolerance principle Unable to identify the account operator and struggling to proceed with a lawsuit in South Korea, IU’s side asked the U.S. court to order Meta to submit key identity information such as the name, phone number and email address, and connection logs that Meta has. EDAM Entertainment said, "After the evidence disclosure request, no results have come out yet, and we heard there are cases where such requests are not accepted," while also stating, "If we can identify A, we plan to proceed with a civil lawsuit as well." If this request is granted, IU’s side is expected to identify the defendant in the domestic lawsuit based on the information received and move ahead with the next phase of proceedings in earnest.