How US defamation law and the First Amendment shape what you can share

What to take away

• US defamation law First Amendment doctrine sets the floor: you can be sued over a false factual claim about a person, but the First Amendment blocks liability in wide categories of speech.
• Actual malice, the NYT v. Sullivan standard, applies when the person you write about is a public official, a public figure, or a limited-purpose public figure.
• The fair report privilege covers accurate summaries of official proceedings, arrests, filings, and hearings, even when the underlying allegation turns out to be wrong.
• Section 230 shields platforms that host or moderate user content; it does not shield you when you write or materially alter the claim yourself.
• State anti-SLAPP statutes let defendants move to dismiss meritless suits early, and roughly half the states have one, with different triggers and appeal rights.
• A fast, specific correction or retraction resolves more disputes than a legal threat does, and several states reduce damages when a publisher retracts promptly.

How the First Amendment protects speech but not every false statement

The First Amendment protects publication, not accuracy. That distinction matters more than any other in this area. You can publish a false statement about a private person and still lose a lawsuit, because the amendment does not immunize defamation.

What the amendment does is limit how far the law can reach. It bars prior restraint, meaning the government generally cannot stop publication in advance. It also raises the fault threshold for speech about public matters, so honest error is not automatically actionable.

That protection is not uniform. The First Amendment protects political speech, commentary, and opinion most strongly. It protects deliberately false statements of fact about a private person least. Courts weigh the speaker, the subject, and the harm.

Opinion is a common defense, but it is not a magic phrase. Labeling something "just my opinion" does not convert a factual accusation into protected commentary. Courts ask whether a reasonable reader would take the statement as asserting a verifiable fact.

A post that says "I think Dana stole from the register" asserts a fact. A post that says "Dana's explanation did not add up to me" is closer to opinion. The first can be defamation. The second usually is not.

Speech about public safety, elections, and government conduct gets the most room. Speech about a private person's health, finances, or criminal record gets less. Your moderation decisions should follow that gradient.

The elements of US defamation law: publication, falsity, fault, and harm

Defamation is a state tort, so the exact elements vary by state. The core structure is stable. A plaintiff usually must show publication, a false statement of fact, fault, and harm.

The elements of defamation laid out by Cornell's Legal Information Institute track that structure and note the split between libel and slander. Libel is written or otherwise fixed. Slander is spoken. Online posts, videos, and podcasts are generally treated as libel.

Publication means a third party saw or heard the statement. Sending a defamatory email to the subject alone is not publication in most states. Posting it in a group chat, a forum, or a public feed is.

Falsity is where most cases turn. A statement must be false to be defamatory. True statements are not defamatory, even when they damage a reputation, and even when they were published out of spite.

Fault is the constitutional layer. Private figures in many states need only show negligence, meaning the publisher failed to act reasonably. Public figures must show actual malice, a much higher bar.

Harm is usually reputational, but it can include lost work, lost housing, or emotional distress. Some categories of statement, such as accusations of serious crime or professional incompetence, are treated as defamatory without proof of specific loss.

The statute of limitations is short in most states, commonly one to three years from publication. Each republication can restart the clock, which is why sharing an old claim can create new exposure.

Element	What the plaintiff must show	Common defense
Publication	A third party saw or heard it	No third party received it
Falsity	The claim is false	Substantial truth
Fault	Negligence or actual malice	Reasonable reliance on sources
Harm	Reputational or economic loss	No identifiable damage

Actual malice after NYT v. Sullivan and who counts as a public figure

The actual malice standard comes from New York Times Co. v. Sullivan, decided in 1964. The Court held that a public official cannot recover for a defamatory falsehood about official conduct without clear and convincing proof of actual malice.

The full text sits in the Supreme Court reporter. Actual malice does not mean spite, hatred, or ill will. It means the publisher knew the statement was false or acted with reckless disregard for whether it was false.

That distinction trips up community moderators constantly. A nasty post is not automatically actual malice. A post the author believed was true is usually not actual malice either, even if the belief was careless.

The standard extends beyond officeholders. Public figures include celebrities, prominent business owners, and people who inject themselves into a public controversy. Limited-purpose public figures are covered only for the topic they entered.

A parent who speaks at a school board meeting about a curriculum fight may become a limited-purpose public figure on that issue. A neighbor who never sought attention usually stays private.

Reckless disregard is proven through the reporting process, not the tone of the final post. Ignoring a document that plainly contradicts the claim, or failing to call an obvious source, can support it. Simple sloppiness usually does not.

Some justices have called for revisiting Sullivan. As of now it remains binding precedent, and lower courts apply it daily to journalists, bloggers, and social posts alike.

The fair report privilege and quoting official records safely

The fair report privilege protects accurate reports of official government proceedings and records. It exists so the public can learn what happens in courtrooms, council chambers, and police stations without every publisher re-litigating the underlying allegation.

Covered material typically includes arrest records, charging documents, civil complaints, and legislative hearings. The privilege applies even when the allegation in the record is false.

The conditions matter. Your report must be fair and accurate, and it should identify the source as an official proceeding or document. A summary that drops the word "alleged" and states the charge as fact can lose the privilege.

Example: A city council agenda lists a vendor as under investigation by the state attorney general. A post that says "the attorney general's office is investigating the vendor, according to the council agenda" is a fair report. A post that says "the vendor stole public money" is not.

Some states limit the privilege to reports of proceedings the public may attend. Others extend it to public records generally. Check your state's version before relying on it for a leaked internal memo.

Keep the document. Save the agenda, the docket number, the filing, or the recording. If a demand letter arrives, the artifact is your defense, and it is much stronger than a memory of where the claim came from.

The privilege is not a license to editorialize inside the summary. Keep your conclusions in a separate paragraph, clearly marked as your own analysis, so the factual report stays clean.

Section 230 and what platforms, not publishers, are shielded from

Section 230 of the Communications Decency Act, found in Title 47 of the U.S. Code, says interactive computer services are not treated as the publisher of information provided by another user.

That means a forum, social network, or comment section generally cannot be sued for a user's defamatory post, even if it moderates content and leaves some posts up. Courts have read the shield broadly.

The protection covers hosting and moderation decisions. It does not cover content the platform creates itself, such as an editorial summary, a headline it writes, or a recommendation that adds a false factual claim.

It also does not cover federal criminal law, intellectual property claims, or sex trafficking claims, which sit outside the shield. Defamation claims against the platform for its own words are outside it too.

The practical split: if you run a community and a member posts a false accusation, Section 230 usually protects you as the host. If you write the accusation into your own newsletter, you are the publisher and the shield is gone.

Moderation does not forfeit the shield. Removing some posts and keeping others is exactly the behavior the statute was written to encourage, and courts have said so repeatedly.

Material alteration is the edge case. Rewriting a user's post, adding a claim, or changing its meaning can move you from host to author. Edit for length and tone carefully, and never add facts the user did not supply.

State anti-SLAPP statutes and early dismissal of meritless suits

A SLAPP is a strategic lawsuit against public participation, filed to burden a speaker rather than to win. State anti-SLAPP statutes give defendants a fast way out.

These laws typically let a defendant file a special motion to strike within a set window after being served. The plaintiff must then show the suit has minimal merit. If they cannot, the case is dismissed early, before discovery costs pile up.

State anti-SLAPP statutes are not uniform. California, Texas, and Georgia have broad protections with fee-shifting for prevailing defendants. New York's law is narrower, covering speech about public petition and free speech in connection with public issues. Several states have none.

Florida's law, revised in 2022, added a stay of discovery and an immediate appeal right. Pennsylvania and Illinois have narrower provisions. Washington's law covers claims based on public participation and communications to government agencies.

Fee-shifting is the teeth. A plaintiff who files a meritless suit can end up paying the defendant's attorney fees, which is why demand letters often soften once a lawyer cites the statute.

Timing is unforgiving. Miss the filing window, often 60 days from service, and the motion may be waived. If you receive a complaint, calendar the deadline the day it arrives.

The federal picture is mixed. Some federal courts apply state anti-SLAPP laws in diversity cases, and others have held that the motion conflicts with federal procedure. Do not assume the state statute will carry into federal court.

Corrections, clarifications, and retractions that kept stories out of court

Most defamation disputes involving small publishers end with a correction, not a verdict. A prompt, specific fix removes the sting and often removes the damages.

Several states have retraction statutes. In those states, a plaintiff who sues over a newspaper or broadcast statement without first requesting a retraction may be limited to actual damages, or barred from punitive damages. Requirements differ, so read your state's version.

Example: A neighborhood newsletter reported that a local contractor had been cited for unlicensed work. The citation was actually issued to a different business with a similar name. The editor published a correction naming the error, removed the original post, and added a note at the top of the archived page. The contractor's lawyer sent no further demand.

The elements that made that work: speed, specificity, a named error, and a visible note on the original. A silent deletion does the opposite, because readers see the claim vanish and assume the publisher is hiding something.

Distinguish the tools. A correction fixes a factual error. A clarification resolves ambiguity without conceding error. An update adds new information. A retraction withdraws the claim entirely. Our fictional case on circular citation correction shows how a claim can become a fact simply by being cited in a loop.

Use the fake emergency account correction case to set a consistent policy before a dispute starts. Consistency is evidence of good faith, and good faith is what negligence and actual malice analyses look for.

• Publish the correction at the same prominence as the original claim
• State what was wrong, not just that an error occurred
• Add a dated note to the original page rather than deleting it
• Remove or annotate the claim in every syndicated or shared copy
• Log the request, the fix, and the time between them
• Tell the person named, in writing, what you changed
• Review whether the same sourcing error appears elsewhere

Learning from an old video correction case takes an afternoon. It pays off the first time a demand letter arrives. The common failures are predictable, and our retracted health study correction case covers the ones that most often escalate.

When to call a media lawyer before you publish

Call a lawyer before publication, not after, when the story accuses a named person of a crime, fraud, professional misconduct, or sexual wrongdoing. Those categories carry the highest risk and the shortest path to litigation.

The same applies when your source is anonymous, when a document came from a leak, or when the subject has already threatened to sue. Prior threats are a signal, not noise.

Bring the artifacts. A lawyer can assess actual malice exposure in minutes if you have the reporting file: the documents, the interview notes, the emails, and the record of what you tried to verify. The source evaluation guide helps you assemble that file before the call.

Ask about your state's anti-SLAPP deadline, retraction statute, and whether the fair report privilege covers the record you are quoting. Those three answers shape the entire risk picture.

For recurring coverage, a pre-publication review arrangement is cheaper than a single defense. Many media lawyers offer flat-fee reviews for small publishers and nonprofit newsrooms.

If you cannot afford a lawyer, slow down instead. Confirm the claim with a second independent source, quote the official record rather than characterizing it, and give the subject a real chance to respond. Document all three steps.

Common questions

Can I be sued for sharing someone else's post? Yes, in principle. Republishing a defamatory claim can be defamation even if you did not write it. Section 230 protects platforms hosting user content, not a person who repeats the claim to a new audience.

Does labeling something opinion protect me? Not by itself. Courts look at whether a reasonable reader would understand the statement as asserting a verifiable fact. An opinion label on a factual accusation does not convert it into protected commentary.

What is the difference between libel and slander? Libel is a defamatory statement in a fixed form, such as a post, article, or video. Slander is spoken. Online publication is generally treated as libel, which matters because some states require proof of special damages for slander only.

Does Section 230 protect me if I moderate comments? Usually yes. The statute protects hosting and moderation decisions, including removing some posts and leaving others. It does not protect content you write yourself or facts you add to a user's post.

How fast do I need to act on an anti-SLAPP motion? Often within 60 days of being served, though the window varies by state. Missing it can waive the protection entirely, so calendar the deadline as soon as a complaint arrives.

Is a correction enough to avoid a lawsuit? Sometimes. A prompt, specific correction reduces damages and supports a good-faith defense, and some states limit recovery when a retraction was requested and published. It does not guarantee the claim goes away.