What Is Defamation? Libel vs. Slander Explained

7 min • Personal Injury

Defamation is a false statement presented as fact that harms another person's reputation. It's one of the oldest torts in common law, and it remains one of the most misunderstood. Defamation comes in two forms: libel (written or otherwise permanently recorded defamation — including online posts, articles, videos, and social media) and slander (spoken defamation — fleeting and unrecorded). The distinction matters because libel is generally considered more harmful (it's permanent and can spread widely), and in many jurisdictions, damages for libel don't require proof of actual financial harm.

To prove defamation, a plaintiff must typically show: (1) the defendant made a false statement of fact (not opinion) about the plaintiff; (2) the statement was published or communicated to a third party; (3) the statement caused harm to the plaintiff's reputation; and (4) the defendant was at fault — the level of fault depends on who the plaintiff is. For private individuals, negligence is usually sufficient. For public figures, the Supreme Court in New York Times Co. v. Sullivan, 376 U.S. 254 (1964), requires proof of 'actual malice' — knowledge of falsity or reckless disregard for the truth.

The most important defense against defamation is truth. If the statement is substantially true, it's not defamation — no matter how damaging. Other key defenses include: opinion (statements of pure opinion that cannot be proven true or false are protected, though prefacing a statement with 'I think' or 'in my opinion' doesn't automatically shield factual assertions), privilege (absolute privilege applies to statements made in legislative proceedings, judicial proceedings, and certain executive communications; qualified privilege protects good-faith statements made in the performance of a duty, like employer references), and consent (if you agreed to the publication).

The internet has transformed defamation law. Section 230 of the Communications Decency Act (47 U.S.C. § 230) generally immunizes websites and platforms from liability for content posted by users — meaning you typically can't sue Facebook or Yelp for defamatory user posts, though you can sue the person who posted them. Anonymous online defamation presents special challenges; plaintiffs may need to file 'John Doe' lawsuits and subpoena internet service providers to identify the poster. The statute of limitations for defamation is typically 1-2 years, and the clock generally starts on the date of publication — though some states apply the 'single publication rule' (one clock for all copies) and some recognize a 'discovery rule' for online content.

If you believe you've been defamed: document everything immediately (screenshots with timestamps, URLs, witness contact information), send a formal retraction demand letter (many states require this before filing suit and it may reduce damages), and assess your damages realistically. Defamation lawsuits are expensive, emotionally draining, and public — the litigation itself can amplify the harm. Consider whether the speaker has assets to satisfy a judgment; many defamation judgments go uncollected. For most non-celebrity defamation, the practical remedy is a retraction, correction, or removal — not a lawsuit.

Key Takeaways

• Defamation = false statement of fact, published to others, causing reputational harm
• Libel (written/permanent) vs. slander (spoken/fleeting) — libel often doesn't require proof of financial harm
• Truth is an absolute defense; opinion and privilege are also key defenses
• Public figures must prove 'actual malice' (NYT v. Sullivan) — knowledge of falsity or reckless disregard
• Document everything, send a retraction demand, and realistically assess whether litigation is worth it

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