Social Media and Online Defamation

Learn about legal issues related to online defamation and cyber libel on social media platforms like Facebook, Twitter, and Yelp.

By , J.D. · University of San Francisco School of Law
Updated by Stacy Barrett, Attorney · UC Law San Francisco

As of 2024, a big majority of Americans use some type of social media. The dramatic rise in social media use has resulted in an increased risk of online defamation.

Defamation happens when someone makes a false statement about you—verbally or in writing—that damages your reputation. Verbal defamation is called "slander." Written defamation is called "libel." (Learn more about Libel vs. Slander: Different Types of Defamation.)

In this article, we'll take a look at the definition of online defamation and how to prove it. We'll also review a couple of examples of online defamation and discuss how and why you might want to file a defamation lawsuit.

For a deep dive into defamation law, check out Nolo's collection of articles on Defamation, Libel & Slander.

What Is Online Defamation?

Defamation law has evolved over hundreds of years, with courts trying to balance one person's freedom of expression against another person's right to defend their reputation. The internet has allowed more free speech than ever before and more opportunities to trash someone's character with a post or a comment.

Traditional defamation cases involve newspaper articles, magazines, letters to the editor, and television and radio broadcasts. Online defamation happens on various platforms, including:

  • Facebook
  • X (formerly Twitter)
  • Instagram
  • TikTok
  • NextDoor
  • LinkedIn
  • Reddit
  • Yelp and other review sites, and
  • blogs.

Defamation is a civil wrong (called a "tort") in most states—you can sue someone for money over it. But harassment and cyberbullying are crimes that can lead to a jail or prison sentence.

How Do You Prove Online Defamation?

Each state has its own defamation laws, but the basic principles are the same no matter where you file your lawsuit. A plaintiff suing for online defamation typically must show that the defendant:

  • made a false statement of fact
  • the statement was made to someone other than the plaintiff
  • the statement harmed the plaintiff's reputation, and
  • the defendant was "negligent" (careless) about whether the statement was true or false.

Public figures, like politicians and celebrities, have to show more than negligence. Public figures have to show that the defendant acted with "actual malice." Actual malice means the defendant made a false statement knowing it was false or with reckless disregard for the truth of the statement.

Defamation is harder to prove than it may seem at first glance. Remember, the statement has to be a false statement of fact. Many defendants argue that what they said about the plaintiff wasn't defamatory because it was true or that it was an opinion and not a fact. A defendant might also argue that the plaintiff's reputation was already so bad that the defendant didn't harm it.

Learn more about key elements of a defamation claim and defenses in defamation cases.

Damages in Defamation Cases

"Damages" is the legal term for the money a plaintiff receives as compensation for harm caused by a defendant. Some defamation claims end in multi-million dollar awards for plaintiffs. Other defamation plaintiffs receive nothing or "nominal" damage awards as low as $1.

Calculating damages in defamation cases is complicated. How do you measure the value of a person's reputation in dollars and cents? Let's take a look at a few common categories of damages in defamation cases.

Special Damages (Economic Damages) In Defamation Lawsuits

Special damages are compensation for the financial harm caused by defamatory remarks, including damage to a plaintiff's professional reputation. For example, say that you're an actor, like Johnny Depp, who lost out on acting roles and endorsement deals after your ex-wife accused you of abuse. You can sue your ex-wife for defamation, as Depp did, and get compensation for your lost income and business opportunities.

You can also ask for compensation for defamation-related out-of-pocket expenses, like therapy bills, online content removal, and moving expenses.

General Damages (Non-Economic Damages) In Defamation Lawsuits

General damages are meant to compensate plaintiffs for intangible losses like "pain and suffering."

General damages aren't available in all defamation cases. In some states, general damages are allowed in libel (written) defamation cases, but not slander cases. Many online defamation cases are libel claims because they involve written posts and comments. But videos posted on increasingly popular platforms like TikTok don't fit neatly under libel or slander labels. Videos aren't written and published, but they aren't like gossiping with your neighbor or making a comment at a public meeting either. The law in this area is still unsettled and is likely to evolve as technology changes.

Are Punitive Damages Possible In Defamation Lawsuits?

Punitive damages are available in some defamation cases. They aren't designed to compensate plaintiffs for their losses, but rather to punish defendants for bad behavior and send a message about the negative consequences of spreading lies about people online.

How Do I Know Who to Sue for Online Defamation?

The most obvious person to sue for defamation is the person who defamed you online, but that person might not have much money to pay damages or the defamatory comments may have been posted anonymously.

Can I Sue an Internet Service Provider For Defamation?

If you've been defamed online, it's natural to want to sue the internet service provider (ISP) of the website that hosts the defamatory content, like Meta (Facebook), X (formerly Twitter), or Yelp. After all, a big tech company is likely to have deeper pockets than the internet troll who is defaming you and you might genuinely believe that ISPs should bear some responsibility for the content on their sites.

But, for better or for worse, a federal law called the Communications Decency Act blocks you from suing ISPs for most defamation claims.

What If the Defamatory Statements Were Posted Anonymously?

Before you can file a defamation lawsuit, you have to figure out who posted the defamatory statements. Some people use their own names, email addresses, or social media accounts to make defamatory comments. But many people hide behind anonymous accounts or use the accounts of other people to conceal their identities when they spread lies on the internet.

You'll likely need the help of a lawyer to suss out who the defendant might be. One strategy some plaintiffs use is to file a John Doe or "unknown defendant" lawsuit. Filing a John Doe lawsuit allows you to get your lawsuit filed within the statute of limitations and gets the discovery process started so that you can subpoena ISPs and identify the anonymous poster.

Where Do I File a Defamation Lawsuit?

Where you file your defamation lawsuit is important. You have to file in a state or federal court that has the authority to hear and decide your case (called "jurisdiction").

You may be able to file your online defamation lawsuit where:

  • you live
  • the defendant lives, or
  • where you have experienced loss or damage as a result of the defamation.

If you think that you have been defamed online, you should talk to a lawyer to discuss your legal options and decide where you should pursue your claim.

Examples of Online Defamation

Let's look at a couple of examples of the kinds of communications that might amount to online defamation.

Let's say you have an X (formerly Twitter) account, and you tweet that John Smith hit his wife two weeks ago. If this statement is false (remember, truth is a defense to defamation), it is defamatory. Falsely accusing someone of a crime in writing is so obviously damaging to that person's reputation that it requires no further proof of harm (called "libel per se").

Are Opinions Protected?

But let's say you wrote, "I think that John Smith hit his wife two weeks ago." Statements of opinion are protected from defamation lawsuits. But is this really a statement of opinion? Sometimes statements of opinion are viewed as statements of fact, depending on the circumstances. In this case, the average person may very well consider your tweet a statement of fact, depending on how well you know John Smith and his wife, and why you think that Smith hit his wife.

The bottom line: Just because you phrase something as a statement of opinion—"I think" or "I believe"—doesn't automatically protect you from a defamation claim.

What If a Statement Is Only Partially True?

Let's take another example. Let's say that you commented on someone else's Facebook post that Mary Johnson was fired from her job because she made a serious mistake and cost her company a big client. Again, if this is a false statement, it's almost certainly defamatory. Questioning a person's professional integrity or competence is another category of defamation per se.

But what if your comment is partially true? What if Mary made a serious mistake, but didn't cause her company to lose a big client? A case like this will probably turn on whether Mary can prove that you were negligent (careless) about figuring out whether your comment was true or false.

The bottom line: If you're posting about people online, make sure that you have all of your facts straight. Once you tap "post" or click "send," you can't take it back.

Talk to a Lawyer

Defamation is a complicated area of law, especially as applied to the ever-changing online landscape. Talk to a lawyer if someone is spreading lies about you online or if you've been accused of defamation.

A lawyer can answer your questions and fight for you in court. Learn more about what your lawyer will do in a defamation lawsuit.

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