Internet Law in California
This page covers internet law as it applies in California — the state and federal laws that govern it, filing deadlines, where to get help, and notable in-state decisions. For what internet protects generally, see the national overview.
Compiled from primary legal sourcesNot legal adviceHow we source this
Quick answer
Internet law in California covers a wide range of online issues, from data privacy and security breaches to online defamation, intellectual property disputes, and e-commerce problems. California has some of the strongest digital privacy protections in the United States, giving residents significant rights over how their personal data is collected and used. If you believe your rights have been violated online — by a business, a platform, or another person — gather evidence and speak with a lawyer promptly, because deadlines to take legal action can be short.
Laws that govern internet in California
California state law
- GENERAL BUSINESS REGULATIONS › REPRESENTATIONS TO THE PUBLIC › Advertising › False Advertising in GeneralCA BPC § 17500
Cited in 449 court decisions on this topic's terms.
- EMPLOYMENT REGULATION AND SUPERVISION › EMPLOYEES › Relocations, Terminations, and Mass Layoffs › Relocation of Call CentersCA LAB § 1410
Cited in 35 court decisions on this topic's terms.
- MISCELLANEOUS HEALTH AND SAFETY PROVISIONS › Safe Drinking Water and Toxic Enforcement Act of 1986CA HSC § 25249.7
Cited in 29 court decisions on this topic's terms.
- DENIAL, SUSPENSION AND REVOCATION OF LICENSES › Denial of LicensesCA BPC § 480
Cited in 23 court decisions on this topic's terms.
- GENERAL PROVISIONS › RELIEF › COMPENSATORY RELIEF › Measure of Damages [[3300.] - 3361.] › Penal DamagesCA CIV § 3344.1
Cited in 22 court decisions on this topic's terms.
- OF CRIMES AND PUNISHMENTS › MISCELLANEOUS CRIMES › Of Other and Miscellaneous OffensesCA PEN § 653m
Cited in 22 court decisions on this topic's terms.
Federal law
- Title 17 — Copyrights
The U.S. Code title that houses these federal statutes.
- Title 47 — Telegraphs, Telephones, and Radiotelegraphs
The U.S. Code title that houses these federal statutes.
- Communications Decency Act § 230
Federal law that immunizes interactive computer services from liability for third-party content. Foundational to the modern Internet. Codified at 47 U.S.C. § 230.
- Computer Fraud and Abuse Act
Federal anti-hacking statute. Criminalizes unauthorized access to "protected computers" and computer-based fraud. Codified at 18 U.S.C. § 1030.
- Digital Millennium Copyright Act
Federal law that implements two 1996 WIPO treaties. Criminalizes circumvention of access controls and establishes the safe harbor for online service providers. Codified at 17 U.…
- CAN-SPAM Act of 2003
Sets the national standard for commercial email, requires unsubscribe options and accurate headers. Codified at 15 U.S.C. §§ 7701–7713.
- Electronic Communications Privacy Act of 1986
Federal law extending restrictions on government wiretaps to include electronic data transmitted by computer. Includes the Wiretap Act, Stored Communications Act, and Pen Regist…
- Privacy Act of 1974
Governs federal-agency collection, use, and disclosure of personally identifiable information. Codified at 5 U.S.C. § 552a.
- Children’s Online Privacy Protection Act of 1998
Imposes parental-consent and notice requirements on online services collecting personal information from children under 13. Codified at 15 U.S.C. §§ 6501–6506.
- Video Privacy Protection Act of 1988
Restricts disclosure of personally identifiable information by videotape service providers; now actively litigated against streaming platforms. Codified at 18 U.S.C. § 2710.
- Clarifying Lawful Overseas Use of Data Act
Allows U.S. law enforcement to compel disclosure of data stored abroad by U.S.-based providers; authorizes executive agreements with foreign governments. Codified at 18 U.S.C. §…
Where to go & how to get help
Government agencies and non-profit legal-help organizations for internet in California.
Official U.S. government starting point for finding free or low-cost legal help and legal-aid programs near you.
Locate the LSC-funded legal-aid organization that serves your county for civil (non-criminal) legal problems.
Find your state or local bar association lawyer-referral service and free legal-answer programs.
Find your state attorney general to file consumer-protection, civil-rights, or other complaints.
How to take action in California
- 1
Document everything
Save screenshots, copies of messages, and records of what happened online, including timestamps and web addresses. This evidence may be critical if you later need to prove your case.
- 2
Identify the type of issue
Internet law covers many distinct problems — privacy violations, data breaches, copyright infringement, online harassment, fraud, or defamation. Knowing what kind of issue you face helps you find the right resources and legal path.
- 3
Check your privacy rights
California law gives residents the right to know what personal data businesses collect about them, to request deletion, and to opt out of the sale or sharing of that data. If a business has not honored those rights, formal complaint processes may be available.
- 4
Report to the right agency
Depending on your issue, you may be able to file a complaint with a state or federal agency. The California Privacy Protection Agency handles privacy law complaints, and the California Attorney General's office handles consumer protection matters.
- 5
Consult a lawyer or legal aid organization
Internet law is technical and fast-changing, and the right approach depends on the details of your situation. A lawyer experienced in this area can review your case; legal aid organizations in California may help if cost is a concern.
- 6
Act quickly
Many internet law claims have filing deadlines that can arrive sooner than expected. Review the deadlines section of this page and do not delay — waiting can reduce or eliminate your options.
A general roadmap, not legal advice — the right steps depend on your situation and deadlines.
Common questions about internet in California
What privacy rights do I have as a California resident when businesses collect my data online?
California's privacy laws give you the right to know what personal information a business collects about you, how it is used, and who it is shared with. You can request that a business delete your data and opt out of the sale or sharing of your information. Some businesses are required to disclose these rights before collecting data. If a company violates these rights, you may have options for filing a complaint or seeking a legal remedy.
What should I do if a company's data breach exposes my personal information?
California law requires businesses to notify you if a security breach exposes certain types of your personal information. After receiving a breach notice, monitor your financial accounts and credit reports closely and consider placing a fraud alert with the major credit reporting agencies. Depending on the nature of the breach, you may have the right to take legal action. Consult a lawyer and review the deadlines section of this page, since time limits may apply.
Can I take legal action against someone who posts false statements about me online?
Online defamation — publishing false statements of fact that damage your reputation — can be a basis for a lawsuit in California, just as it would be in person. Not every negative post qualifies, and whether you have a strong claim depends on what was said, who said it, and the context. Identifying and serving a lawsuit on an anonymous poster can add complexity. A lawyer can help you evaluate the strength of your case.
Can I sue a social media platform or website for harmful content posted by its users?
A federal law limits the legal liability of online platforms for content created and posted by their users in most situations, which is why platforms are often not held responsible for third-party posts. This protection has limits and exceptions, and some California laws address platform conduct in specific contexts. If you have been harmed by content on a platform, speaking with a lawyer is the best way to understand whether a viable legal claim exists.
What are the rules around unwanted commercial emails sent to California residents?
Federal law regulates commercial email and requires that marketing messages include a clear way to opt out, honest subject lines, and accurate sender information. California law adds additional requirements for some email marketing directed at California residents. If a business ignores your opt-out request or uses deceptive practices, you may have legal options and can report violations to state or federal agencies.
Are there special rules about collecting personal data from children online?
Yes. Federal law places strict limits on how websites and online services may collect personal information from children under a specified age, and California law adds further protections on top of those federal rules. If you believe a website has improperly collected your child's data, you should stop using the service, document what happened, and consider filing a complaint with a relevant agency or speaking with a lawyer.
What can I do if someone is harassing or cyberbullying me online?
California law includes protections against certain forms of online harassment and cyberbullying, and depending on the severity, the conduct may give rise to civil claims, criminal charges, or both. Document all incidents carefully, and if you feel you are in immediate danger, contact law enforcement. For ongoing harassment, a lawyer can advise you on options such as civil claims or seeking a restraining order.
Not legal advice. State-specific statutes, deadlines and procedures are being sourced and will appear here.