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General information only — not legal advice. Published by Edward & Amaury Solicitors, solicitors regulated by the SRA (no. 800525). How that affects what you read.

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Data Breach Claims Under California Law

United States (federal and general)Last reviewed 18 September 2026

California's consumer privacy law lets residents sue a business if their nonencrypted personal information is accessed because the business failed to maintain reasonable security. A consumer can recover actual damages or statutory damages per incident, whichever is greater, but must generally give 30 days' written notice and a chance to cure first.

What the Law Provides

Direct Answer: Section 1798.150 allows a consumer whose nonencrypted personal information is accessed or disclosed because of a business's failure to maintain reasonable security to recover damages.

Recovery can be actual damages or statutory damages, whichever is greater, per consumer per incident. The statute originally set the range at $100 to $750, and the figures are adjusted over time, so check the current amounts. Only certain types of information are covered, and the law applies to businesses that meet the statute's thresholds.

Notice and Cure

Before suing for statutory damages, a consumer must give the business 30 days' written notice identifying the violation. If the business cures the violation and confirms it in writing within that period, statutory damages are not available, though the statute states that improving security after a breach is not a cure. The notice requirement does not apply to claims for actual financial damages only.

Class Actions and Other Options

Because a breach usually affects many people, claims are often brought as class actions, which are covered by their own procedures. Residents of other states may have different protections, since breach notification and private rights of action vary, so the law that applies depends on where you live and the nature of the breach. Keep the breach notice you received and records of any losses such as fraud or identity theft costs.

Frequently Asked Questions

Can I sue a company after a data breach in California?

Yes, in certain cases: if your nonencrypted personal information was exposed because the business failed to use reasonable security, § 1798.150 gives a right to sue.

How much can I recover?

Actual damages or statutory damages per consumer per incident, whichever is greater. The statutory range was set at $100 to $750 and is adjusted periodically.

Do I have to give notice first?

For statutory damages, yes: 30 days' written notice, and no statutory damages if the business cures and confirms in writing. Actual damages claims do not need it.

Does the law cover every kind of data?

No. It covers specific categories of nonencrypted personal information and account credentials, so the type of data matters.

What if I do not live in California?

Your state's laws apply, and they vary in their notice rules and whether they give a private right of action.

What should I keep?

The breach notification, records of any fraud, credit monitoring costs or time spent, and correspondence with the company.

Can I get a data breach lawyer without paying upfront?

Often, yes. Many attorneys handling injury and consumer claims work on contingency or fee-shifting arrangements, so you pay no hourly fees upfront, but the terms and treatment of case costs are set out in a written agreement. Read it before you sign and ask how costs are handled.

You May Also Be Interested In

Where this applies: Contingency fee rules are set state by state. Check your own state's rules before acting.

Sources for this page

Every rule stated above is based on the primary sources below. Each link goes to the legislation, court rule or regulator itself so you can check it. Last verified 18 September 2026.

  1. ABA Model Rule 1.5 (Fees)

    Model, not law. Each state adopts its own version. Rule 1.5(d) bars contingency fees in most domestic relations matters and in criminal defence.

  2. Cornell LII — contingency fee
  3. Cal. Civ. Code § 1798.150 — Data breach private right of action

    Consumers may recover statutory or actual damages, whichever is greater, where nonencrypted personal information is accessed because of a business's failure to maintain reasonable security; 30 days' written notice and opportunity to cure apply before suing for statutory damages.

Who wrote and checked this page

Written and published by
Edward & Amaury Solicitors (Edward & Amaury Ltd, company no. 12195443), regulated by the Solicitors Regulation Authority under no. 800525.
Legal review
This page has not yet been through independent legal review. It is written from the primary sources listed below, which you can check directly.
Review dates
Last reviewed 18 September 2026. Next review due 18 March 2027.

Fee rules change. California’s medical malpractice fee limits changed on 1 January 2023, and the QOCS rules in England and Wales changed on 6 April 2023. If you spot something out of date, tell us — we publish corrections.

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Where this applies: Contingency fee rules are set state by state. Check your own state's rules before acting.

Sources for this page

Every rule stated above is based on the primary sources below. Each link goes to the legislation, court rule or regulator itself so you can check it. Last verified 2 August 2026.

  1. ABA Model Rule 1.5 (Fees)

    Model, not law. Each state adopts its own version. Rule 1.5(d) bars contingency fees in most domestic relations matters and in criminal defence.

  2. Cornell LII — contingency fee
  3. Federal Rule of Civil Procedure 54(d) (costs to the prevailing party)

    A losing plaintiff may be ordered to pay the defendant's taxable costs. There is no US equivalent of QOCS.

Who wrote and checked this page

Written and published by
Edward & Amaury Solicitors (Edward & Amaury Ltd, company no. 12195443), regulated by the Solicitors Regulation Authority under no. 800525.
Legal review
This page has not yet been through independent legal review. It is written from the primary sources listed below, which you can check directly.
Review dates
Last reviewed 2 August 2026. Next review due 2 February 2027.

Fee rules change. California’s medical malpractice fee limits changed on 1 January 2023, and the QOCS rules in England and Wales changed on 6 April 2023. If you spot something out of date, tell us — we publish corrections.