EDAM Entertainment said Monday that most of the people who posted hateful, insulting comments had been identified and were under investigation.
"We cannot disclose any detail on the process but they are being held accountable accordingly," it said.
EDAM said it would continue to monitor and take legal action against any malicious online comments about the singer.
Meanwhile, IU released "I Give You My Heart," the soundtrack for tvN's hit drama "Crash Landing on You," last Saturday.
source: The Korea Times