Korea Online Defamation Law: What Every Foreigner Needs to Know

Korea online defamation law catches most foreigners off guard. Here is the part that shocks newcomers the most: a single review, one comment, or a social media post can trigger a criminal investigation, not just a civil lawsuit.

Three things make Korean defamation law fundamentally different from what you may be used to back home.

• Defamation applies even when your statement is true (with a narrow exception) (Law.go.kr)
• Insults and slurs can be prosecuted as a separate crime (“contempt”) (Law.go.kr)
• Online posts fall under the Information and Communications Network Act (ICNA), which carries heavier penalties than offline defamation (Law.go.kr)

Korea Online Defamation Law: Three Categories at a Glance

Category	What Gets You in Trouble	Law & Penalty (Summary)
Criminal Defamation (Criminal Act)	Publicly stating facts or false facts that lower someone’s social reputation	True facts: up to 2 yrs prison / 5M KRW fine. False facts: up to 5 yrs prison / 10M KRW fine (Law.go.kr)
Insult / Contempt (Criminal Act)	Publicly insulting someone without stating specific facts (slurs, derogatory language)	Up to 1 yr prison / 2M KRW fine (Law.go.kr)
Online Defamation (ICNA Art. 70)	Posting facts or falsehoods on the internet with intent to defame	True facts: up to 3 yrs / 30M KRW. False facts: up to 7 yrs / 50M KRW (Law.go.kr)

In practice, most online posts and comments are prosecuted under ICNA Article 70, which requires a separate element: “intent to defame.” This becomes the key battleground in court. (Law.go.kr)

Three Key Elements of Korea Online Defamation Law

Publicity: Could Multiple People See It?

The Supreme Court defines “publicity” as a state where an unspecified or large number of people could perceive the statement. Even telling just one person can satisfy this requirement if there is a possibility of further dissemination. (Law.go.kr) For related information, see our guide on essential apps for foreigners in Korea.

For insult cases, the Supreme Court applies a similar “dissemination possibility” test but emphasizes that courts must carefully assess dolus eventualis (whether the person accepted the risk of spread). (Law.go.kr)

What this means for foreigners in practice:

• Public social media / online communities: publicity almost always satisfied
• KakaoTalk open chats / group chats: depends on size and nature of the group; the possibility of screenshots and forwarding is key (Law.go.kr)
• 1-on-1 DMs: not automatically safe, since the recipient could spread the message (case-by-case)

Identifiability: No Name Needed Under Korea Online Defamation Law

The Supreme Court has ruled that even without naming someone directly, if surrounding context and details allow readers to identify a specific person, the identifiability requirement is met. (Law.go.kr)

Risky examples (identifiable without a name):

• “The Korean manager who works at that club in Hongdae”
• “The foreign staff member in our company’s X team (role + department + incident)”

Statement of Fact vs. Opinion in Online Defamation Cases

• “He’s a scammer / that’s illegal” — likely interpreted as a factual assertion (or an assertion implying facts)
• “Absolutely the worst / not great / I felt uncomfortable” — value judgment (though wording and context can still cause disputes)

Why Truth Is Not a Defense Under Korea Online Defamation Law

Criminal Act: Truth + Public Interest = Exemption

Article 310 of the Criminal Act provides that if a statement is truthful and made solely in the public interest, the person shall not be punished. (Law.go.kr)

The Supreme Court has clarified that:

• “Truthful facts” means the essential substance matches objective reality (minor exaggerations do not disqualify it).
• “Public interest” includes not just national or societal concerns, but also the interests of a specific social group. (Law.go.kr)

The Court has also held that even if truth is not perfectly proven, a reasonable belief in the truth (with justifiable grounds) may negate wrongfulness. (Law.go.kr)

However, simply believing something is true does not guarantee automatic exemption. Courts examine evidence, tone, purpose, and context together.

ICNA (Online): “Intent to Defame” Is the Core Issue

ICNA Article 70 requires “intent to defame” as a separate element. The Supreme Court has clarified that a false statement does not automatically prove intent to defame, and the burden of proof lies with the prosecutor. (Law.go.kr)

Practical takeaway:

• Writing in a “consumer warning / public interest” tone carries far less risk than
• Writing in a “revenge / mockery / personal attack” tone. The phrasing decides your risk level.

10 Risky Expressions That Trigger Korea Online Defamation Law

The following words and patterns carry heavy legal weight in Korean law because they assert criminal labels or definitive conclusions.

1. “Scammer” / “fraud” / “sagi”
2. “Thief” / “stole” / “theft”
3. “Illegal” / “bulbeop”
4. Asserting specific crimes (sex crimes, school violence, drugs)
5. “100% confirmed,” “fact,” “I have proof (but won’t show it)”
6. Real name + face + workplace/school/shop details (= strong identifiability) (Law.go.kr)
7. Hate speech, slurs, or derogatory language targeting individuals
8. Singling out individual employees in reviews (“that female staff / that male manager”)
9. Insults or mockery in KakaoTalk group chats (publicity is debatable but risky) (Law.go.kr)
10. “I’ve reported them to the police / they’ll be arrested soon” (unverified claims about criminal proceedings)

How to Write the Same Thing More Safely Under Korea Online Defamation Law

No phrasing guarantees immunity, but certain sentence structures significantly reduce your risk of a legal dispute.

Dangerous Phrasing

• “This shop is a scam.”
• “The employee stole money.”
• “That person is an illegal immigrant.”

Safer Alternatives (Experience + Verifiable Facts + Scope Limits)

• “Visited on 2026-01-10. The bill did not match the menu price, and an extra charge appeared on the receipt. I asked for an explanation but did not receive one.”
• “I noticed cash was missing from my wallet and requested a CCTV review. The result is still pending.”
• “I cannot verify the person’s immigration status, so I will not comment on it.”

Key principles:

• Replace criminal labels with observable, verifiable facts
• Only mention things you can prove (receipts, booking confirmations, chat screenshots)
• Minimize personal details (face, real name, workplace, school) to reduce identifiability risk (Law.go.kr)

30-Second Checklist Before You Post: Avoid Korea Online Defamation Law Violations

Run through this checklist before you hit “post.”

• Does it contain personal information (real name, face, phone number, license plate, address)? Remove it.
• Are there excessive identifying details (department, job title, time, location) pointing to a specific person? (Law.go.kr)
• Does it include legal conclusions like “scam,” “thief,” or “illegal”? Replace them with factual descriptions.
• Is the channel highly public (open community, group chat) where dissemination is likely? (Law.go.kr)
• Could it be read as serving the “public interest,” or does it look like “revenge or mockery”? (Law.go.kr)
• Do you have evidence (receipts, bookings, chat logs, photos)?
• Have you first contacted the other party through official channels (refund request, complaint)? This helps your case if a dispute arises.

If You Are the Victim: Requesting Content Removal in Korea

If your rights have been violated by defamatory content online, you can request that the platform delete the post or publish a rebuttal. Under the law, service providers must promptly take necessary measures such as deletion or temporary blocking upon receiving a request, and notify both the complainant and the poster. (Law.go.kr) You may also want to review our guides on handling legal issues as a foreigner in Korea and alien registration card procedures.

Step-by-step process:

1. Save the post URL, take screenshots, and record author information
2. Submit a “rights infringement report / deletion request” through the platform
3. Check whether temporary measures (access blocking) have been applied
4. Consult the police or a lawyer if needed

Accused of Online Defamation in Korea? Minimum Response Principles for Foreigners

• Ignoring it is the worst option (it can escalate to a summons and formal investigation).
• Organize your original post and all supporting evidence (receipts, chat logs, notes) into one folder.
• Do not write additional posts or comments to “explain yourself” (you will only create more potentially incriminating statements).
• Consult a lawyer (with interpretation if needed) to determine your course of action.
• Understand the settlement and “no-punishment request” structure before making decisions.

Note: insult under the Criminal Act is a “complaint offense” (the victim must file a complaint for prosecution to proceed). Defamation under both the Criminal Act and ICNA cannot be prosecuted against the victim’s expressed wishes. (Law.go.kr) (Law.go.kr)

Korea Online Defamation Law FAQ

Q1. Can I be punished even if I only stated the truth? Yes, it is possible. However, the Criminal Act provides an exemption when the statement is “truthful and made solely in the public interest.” The Supreme Court has elaborated on what constitutes “public interest.” (Law.go.kr)

Q2. Can defamation or insult charges arise from KakaoTalk group chats? Yes, depending on the circumstances. The Supreme Court considers the “possibility of dissemination” a key factor for the publicity requirement (for both defamation and insult). (Law.go.kr)

Q3. Am I safe if I don’t use the person’s name? No. The Supreme Court has ruled that if readers can identify the person from context and surrounding details, identifiability is established regardless of whether a name was used. (Law.go.kr)

Q4. Do online posts fall under a different law than offline defamation? Yes. Online posts can be prosecuted under ICNA Article 70, which requires “intent to defame” as an additional element. The penalties are specified in the statute. (Law.go.kr)

Q5. If someone files a “rights infringement” complaint against my post, will it be taken down immediately? The ICNA requires platforms to take necessary measures such as deletion or temporary blocking upon receiving such requests. Temporary measures (access restrictions) are part of this process. (Law.go.kr)

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