K-pop star IU is taking legal action against over 180 individuals for online harassment, her agency announced Monday.

EDAM Entertainment said that the singer has been a target of malicious online activities for the past two years, blocked the malicious post-writing persons and have worked with a law firm to gather evidence and file lawsuits.

The agency has been going after more serious cases that meet the criminal prosecution criteria, such as threats, insults — defamation regarding the plagiarism accusations, death threats, invasion of privacy, and sexual harassment.

According to AllKpop, EDAM Entertainment reportedly have recognized more than 180 defendants. It noted, "We are continuing to pursue additional legal action,

In this continuation, the agency said six of the cases are being fined and stripped of their business licenses, while three of the cases were settled with conditional non-prosecution where the warring parties took compulsory educational courses.

One case was that of conditional non-prosecution with guidance on probation.

Prosecutors say at least two of the suspects accused of cyberbullying had especially malicious intent. The recommended penalties are a two-year ban and 3 million KRW fines (approx. $2,200) for offenses like spreading false information (i.e., fake news) and sexual harassment.

However, some defendants have challenged the charges, leading to actual trials. Some of these cases are currently in the trial process, IU's representatives said.

The agency also cited continuing harassment by some individuals challenging all or specific aspects of these efforts that they now must address in formal court hearings.

In particular, the personal details of offenders living abroad are among those identified. That includes those who affected IU with baseless plagiarism accusations last year.

The agency also disclosed that one individual among them is thought to be a former middle school classmate of IU who, despite current legal proceedings, continues to harass her.

EDAM Entertainment also stated that they are collaborating with the law enforcement agencies to track the perpetrators through foreign Internet protocol (IP) addresses.

A preliminary inquiry has been carried out against one netizen accused of spreading false espionage claims, but proceedings have been suspended as the suspect refused to appear before investigators. The case has since been referred to the public prosecutor.

The agency noted, ""We have selected only the most serious cases of illegal activity and are pursuing criminal charges without leniency." They cautioned that penalties would rise with the number of violations.

Finally, EDAM Entertainment noted the continued suffering IU and her fans were inflicted by malicious online content. "Our reaction will remain as strong as ever. It is high time to end illegal acts by means of the internet."

On July 24, the first hearing for a damages lawsuit against the netizen who first accused IU of bullying was held at the Seoul Central District Court, but the netizen did not appear in court. Another hearing is set for December 4.