republic-os/legislation/us/states/ca/20112012/sb-24.md

---
type: "Bill"
title: "Personal information: privacy."
description: "Existing law requires any agency, and any person or business conducting business in California, that owns or licenses computerized data that includes personal information, as defined, to disclose in specified ways, any breach of the security of the system or data, as defined, following discovery or notification of the security breach, to any California resident whose unencrypted personal information was, or is reasonably believed to have been, acquired by an unauthorized person."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20112012"
identifier: "SB 24"
citation: "California SB 24 (20112012)"
classification: ["bill"]
subjects: ["Personal information: privacy."]
status: "enacted"
primary_sponsors: ["Simitian"]
version_count: 6
action_count: 22
vote_count: 6
first_action: "2010-12-06"
last_action: "2011-08-31"
source: "openstates"
source_identifier: "ocd-bill/78db41cc-d3ff-4af8-b2c0-aef279df5417"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201120120SB24"
source_hash: "1a4b0a666164d187eca1b766cd4e46584f8e66449bf1b592a71ddd75c14e73d8"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ca"]
---

# California SB 24 (20112012) — Personal information: privacy.

Existing law requires any agency, and any person or business conducting business in California, that owns or licenses computerized data that includes personal information, as defined, to disclose in specified ways, any breach of the security of the system or data, as defined, following discovery or notification of the security breach, to any California resident whose unencrypted personal information was, or is reasonably believed to have been, acquired by an unauthorized person.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **12/06/10 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB24&version=20110SB2499INT)
2. **03/29/11 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB24&version=20110SB2498AMD)
3. **06/20/11 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB24&version=20110SB2497AMD)
4. **08/31/11 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB24&version=20110SB2495CHP)
5. **SB24** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201120120SB24)
6. **08/19/11 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB24&version=20110SB2496ENR)

## Votes

- SB 24 Simitian Senate Third Reading By FEUER — **60–16** (pass) · lower
- Do pass. — **12–4** (pass) · lower
- 3rd Reading — **31–6** (pass) · upper
- Do pass as amended and be re-referred to the Committee on Appropriations. — **10–0** (pass) · lower
- Unfinished Business SB24 Simitian Concurrence — **35–4** (pass) · upper
- Do pass as amended, and re-refer to the Committee on Appropriations. — **4–0** (pass) · upper

## Sponsors

- Simitian — primary (person)
- Fuller — coauthor (person)
- Wieckowski — coauthor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2010-12-06** Introduced. Read first time. To Com. on RLS. for assignment. To print. `introduction, reading-1`
- **2010-12-07** From printer. May be acted upon on or after January 6.
- **2011-01-20** Referred to Com. on JUD. `referral-committee`
- **2011-03-11** Set for hearing March 22.
- **2011-03-25** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 4. Noes 0. Page 415.) (March 22). `amendment-passage, committee-passage, committee-passage-favorable`
- **2011-03-29** Read second time and amended. Re-referred to Com. on APPR. `reading-2, reading-1, amendment-passage, referral-committee`
- **2011-04-01** Set for hearing April 11.
- **2011-04-11** From committee: Be placed on second reading file pursuant to Senate Rule 28.8. `committee-passage`
- **2011-04-12** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2011-04-14** Read third time. Passed. (Ayes 31. Noes 6. Page 652.) Ordered to the Assembly. `reading-3, reading-1, passage`
- **2011-04-14** In Assembly. Read first time. Held at Desk. `reading-1`
- **2011-05-02** Referred to Com. on JUD. `referral-committee`
- **2011-06-16** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 10. Noes 0.) (June 14). `amendment-passage, committee-passage, committee-passage-favorable`
- **2011-06-20** Read second time and amended. Re-referred to Com. on APPR. `reading-2, reading-1, amendment-passage, referral-committee`
- **2011-07-06** From committee: Do pass. (Ayes 12. Noes 4.) (July 6). `committee-passage, committee-passage-favorable`
- **2011-07-07** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2011-08-15** Read third time. Passed. (Ayes 60. Noes 16. Page 2388.) Ordered to the Senate. `reading-3, reading-1, passage`
- **2011-08-15** In Senate. Concurrence in Assembly amendments pending.
- **2011-08-18** Assembly amendments concurred in. (Ayes 35. Noes 4. Page 1974.) Ordered to engrossing and enrolling. `committee-passage-favorable, amendment-passage`
- **2011-08-23** Enrolled and presented to the Governor at 3 p.m.
- **2011-08-31** Approved by the Governor. `executive-signature`
- **2011-08-31** Chaptered by Secretary of State. Chapter 197, Statutes of 2011.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/78db41cc-d3ff-4af8-b2c0-aef279df5417`. Confidence: reported (aggregated from official California legislature records).