An online post allegedly disclosing actress Kim Sae-ron's dating history has gone viral, sparking a heated debate and drawing sharp criticism for the spread of unconfirmed private information on the web.

The post, titled "This is supposedly Kim Sae-ron's list of ex-boyfriends she dated since middle school," has already garnered tens of thousands of views and comments within such a short period.

It includes a detailed, though unverified, timeline of alleged relationships involving Kim from age 13 to 26.

Among the names and claims listed were idol trainees, professional athletes, a startup CEO, and even a singer involved in a fatal DUI accident.

The post also claims a pregnancy rumor in 2018 and a married man. Controversial claims also accuse her of having past relations with singer Woojo, who was once convicted in a DUI case that took a life.

No sources or evidence were provided, but the level of detail captured wide attention and split public opinion.

Some netizens mocked the claims with comments like, "She's really been busy, wow," while others voiced concern over the implications of spreading potentially defamatory content about a deceased individual.

The controversy also resurfaced rumors of an underage relationship between Kim Sae-Ron and actor Kim Soo-Hyun, one that has long persiste,d but both have dispelled.

Some commenters referenced a now-deleted video and a handwritten letter that had been previously circulated online.

One user wrote, "Even if that's true, they still dated. So even if Kim Sae-ron was two-timing, it still means they dated when she was underage." Another added, "If my child or relative had died unfairly and people kept insulting the deceased, I wouldn't let it slide."

Other netizens pushed back against the post's legitimacy, asking, "How can anyone believe that list?" and criticizing fans for using it to justify attacks on others: "Do whatever fangirling you want, but stop disrespecting the deceased."

The viral post has reignited public discourse around privacy, cyberbullying, and the ethics of internet journalism in South Korea.

Legal experts have warned that even reposting or commenting on unverified claims about private individuals—especially those deceased—could constitute defamation under Korean law.

As of now, there has been no official response from Kim Sae-ron's family or legal representatives.

The situation unfolds against the backdrop of Kim Soo-hyun's ongoing legal dispute with the Garo Sero Institute and its CEO, Kim Se-ui, involving allegations of stalking and a KRW 12 billion (approximately USD 8.7 million) civil lawsuit.

Critics are asking for restraint and to be better insulated against such digital defamation, particularly when it comes to infringing upon the reputations of both the living and the dead.