The short answer. Section 230 says websites are not legally treated as the publisher of what their users post. That means a site hosting lies about you usually cannot be sued for them, and has no legal reason to take them down. The person who wrote the post is still responsible.
The 26 words
The core of Section 230 of the Communications Decency Act, passed in 1996, reads: "No provider or user of an interactive computer service shall be treated as the publisher or speaker of any information provided by another information content provider." (47 U.S.C. § 230(c)(1))
In plain terms, if someone else wrote it, the site that hosts it, the search engine that indexes it, and even a person who shares it are generally not liable for it as if they had written it themselves.
How courts have applied it
- Broad protection for platforms. Since Zeran v. America Online, 129 F.3d 327 (4th Cir. 1997), courts have held that platforms cannot be sued for defamation over user content, even after being told it is false.
- Protection for users who repost. The California Supreme Court held in Barrett v. Rosenthal, 40 Cal.4th 33 (2006) that people who republish someone else's online content are also protected.
- No removal order against a nonparty site. In Hassell v. Bird, 5 Cal.5th 522 (2018), Yelp could not be ordered to remove reviews a court had already found defamatory, because Yelp was not a party to the lawsuit.
- Limits when a site helps create content. A site that materially contributes to what makes content unlawful can lose protection (Fair Housing Council v. Roommates.com, 521 F.3d 1157 (9th Cir. 2008)).
What Section 230 does not cover
- The author. Whoever wrote the false post can be sued.
- Federal criminal law. Platforms can still be prosecuted under federal criminal statutes.
- Intellectual property. Copyright claims, including DMCA takedown notices, are not blocked.
- Sex trafficking. The 2018 FOSTA law created exceptions for sex trafficking claims.
- Intimate images. The federal TAKE IT DOWN Act separately requires covered platforms to remove reported nonconsensual intimate images within 48 hours.
Why this leaves victims stuck
Section 230 was written to let the internet grow without every site being sued over every post. It largely succeeded. But for a private person targeted by false claims, it means the companies with the power to remove content have no legal duty to act, and the only party who can be held responsible may be anonymous, judgment proof or out of reach.
What a state can still do
California cannot rewrite Section 230. It can change the tools available against the people who post false content, and how fast courts can rule. Our proposal works inside federal law:
- A fast court process to declare a specific post false, which search engines and hosts already treat as a basis for removal
- A ban on sites charging people to remove content about them, which targets the site's own conduct
- A clear procedure to identify anonymous posters when there is real evidence of defamation or harassment