Search Data Security Breaches

California law requires a business or state or local agency to notify any California resident whose unencrypted personal information, as defined, was acquired, or reasonably believed to have been acquired, by an unauthorized person. (You can read the law here: California Civil Code s. 1798.29(a) for state agencies and California Civ. Code s. 1798.82(a) for businesses).

The law also requires that a sample copy of a breach notice sent to more than 500 California residents must be provided to the California Attorney General. Below is a list of those sample breach notices. (Note that in some cases the organization that sent the notice is not the one that experienced the breach. For example, a bank may notify of a credit card number breach that occurred not at the bank, but at a merchant.)

You can search by the name of the organization that sent the notice, or simply scroll through the list. To read a notice, click on the name of the organization in the list. Then click on the link titled "Sample Notification."

Download Full Data Breach List (CSV)

Organization Name Date(s) of Breach Reported Date
Bellflower Unified School District 07/22/2025 06/12/2026
Las Lomitas Elementary School District 04/25/2026 05/11/2026
Chaffey Joint Union High School District 05/01/2026 05/08/2026
California Online Public Schools n/a 03/26/2026
Sunnyvale Elementary School District n/a 10/22/2025
Sunnyvale Elementary School District n/a 10/03/2025
Hacienda La Puente Unified School District 02/09/2025 09/17/2025
Burlingame School District 12/19/2024 09/15/2025
Method Schools 08/25/2025 08/26/2025
Moreno Valley Unified School District 06/04/2025 07/23/2025
Hacienda La Puente Unified School District 02/09/2024 07/03/2025
Hacienda La Puente Unified School District 02/09/2024, 04/12/2024 04/30/2025
Riverdale Joint Unified School District 03/18/2025 03/27/2025
Jefferson Elementary School District 09/27/2024 03/04/2025
Portola Valley School District 12/28/2024 01/30/2025
The O'farrell Charter School 12/28/2024 01/28/2025
PowerSchool Group LLC 12/19/2024, 12/28/2024 01/27/2025
Salinas City Elementary School District 12/22/2024 01/27/2025
Ramona Unified School District 12/22/2024 01/13/2025
Santee School District 12/19/2024, 12/20/2024, 12/21/2024, 12/22/2024, 12/23/2024 01/13/2025
Rancho Santa Fe School District 12/22/2024 01/10/2025
Norwalk La Mirada Unified School District n/a 12/27/2024
Natomas Unified School District 06/26/2024 12/18/2024
El Dorado Union High School District 05/25/2024, 06/18/2024 11/14/2024
Cottonwood Union School District 05/16/2024 10/09/2024
River Delta Unified School District 12/20/2023 09/16/2024
El Monte Union High School District 06/18/2024, 07/04/2024 09/09/2024
Glendale Unified School District 11/06/2023, 12/06/2023 08/09/2024
New York School of Interior Design 11/02/2023, 11/26/2023 07/09/2024
Escondido Union High School District 11/03/2023, 11/05/2023 06/20/2024
Hesperia Unified School District 05/04/2024, 05/08/2024 06/12/2024
Elk Grove Unified School District 04/17/2023 06/05/2024
Association of California School Administrators 09/23/2023, 09/24/2023 05/22/2024
Santa Rosa City Schools 08/30/2023, 08/31/2023 04/05/2024
Eastside Union School District 05/23/2023, 06/06/2023 03/18/2024
Illuminate Education, Inc. (on behalf of Victor Valley Union High School District) 12/28/2021, 01/08/2022 03/04/2024
Illuminate Education, Inc. (on behalf of Tracy Unified School District) 12/28/2021, 01/08/2022 03/04/2024
Illuminate Education, Inc. (on behalf of Tehachapi Unified School District) 12/28/2021, 01/08/2022 03/04/2024
Illuminate Education, Inc. (on behalf of Santa Monica-Malibu Unified School District) 12/28/2021, 01/08/2022 03/04/2024
Illuminate Education, Inc. (on behalf of Azusa Unified School District) 12/28/2021, 01/08/2022 01/31/2024
Illuminate Education, Inc. (on behalf of Orange Unified School District) 12/28/2021, 01/08/2022 01/31/2024
Fullerton Joint Union High School District 11/14/2023 01/25/2024
Glendale Unified School District 11/06/2023, 12/06/2023 01/10/2024
Illuminate Education, Inc. (on behalf of Orcutt Union School District) 12/28/2021, 01/08/2022 12/21/2023
Illuminate Education, Inc. (on behalf of Riverside Unified School District) 12/28/2021, 01/08/2022 12/21/2023
Merced City School District 11/24/2022, 11/30/2022 12/20/2023
KIPP Public Schools Northern California 06/01/2023 08/28/2023
San Diego Unified School District 10/25/2022 08/23/2023
Sweetwater Union High School District 02/11/2023, 02/12/2023 06/30/2023
Val Verde Unified School District 01/22/2022, 05/10/2022 05/11/2023