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
Yucaipa-Calimesa Joint Unified School District 11/04/2019 06/02/2020
Yuba City Unified School District 11/04/2019 06/11/2020
Woodland Unified School District 11/04/2019 11/04/2020
Wiseburn Unified School District 04/04/2017 05/30/2017
Wildwood School 02/20/2020, 05/20/2020 01/19/2021
Visalia Unified School District 01/01/2021, 06/03/2021 12/30/2021
Victor Valley Union High School District 02/26/2021 06/03/2021
Val Verde Unified School District 01/22/2022, 05/10/2022 05/11/2023
UC San Diego School of Medicine 08/03/2016 09/22/2016
The Public School and Education Employees Retirement Systems of Missouri 09/11/2021 10/14/2021
The Online Traffic School n/a 09/29/2017
The Oakwood School 02/07/2020, 05/20/2020 02/03/2021
The O'farrell Charter School 12/28/2024 01/28/2025
The Archer School for Girls 02/07/2020, 05/20/2020 01/13/2021
Sweetwater Union High School District 02/11/2023, 02/12/2023 06/30/2023
Sweetwater Union High School District 09/29/2022, 10/10/2022 11/07/2022
Sunnyvale Elementary School District n/a 10/22/2025
Sunnyvale Elementary School District n/a 10/03/2025
Stanford School of Medicine & Lucile Packard Children's Hospital 01/09/2013 01/18/2013
Stanford Hospital & Clinics and School of Medicine 07/15/2012 08/10/2012
St. Francis Catholic High School 05/01/2020 01/22/2021
Seven Hills School 02/07/2020, 05/20/2020 04/13/2021
Sequoia Union High School District 02/03/2016 03/11/2016
Santee School District 12/19/2024, 12/20/2024, 12/21/2024, 12/22/2024, 12/23/2024 01/13/2025
Santa Rosa City Schools 08/30/2023, 08/31/2023 04/05/2024
Santa Catalina School 02/07/2020, 05/20/2020 03/26/2021
Santa Barbara Unified School District n/a 05/20/2020
San Mateo Foster City School District n/a 05/11/2016
San Luis Coastal Unified School District 05/22/2022 09/16/2022
San Leandro Unified School District 11/04/2019 06/11/2020
San Gabriel Unified School District n/a 07/29/2022
San Francisco University High School 02/07/2020, 05/20/2020 02/22/2021
San Francisco Unified School District 04/10/2019 05/01/2019
San Dieguito Union High School District 07/01/2019, 07/17/2019 05/14/2020
San Dieguito Union High School District 04/12/2021 06/11/2021
San Dieguito Union High School District 04/01/2019, 01/28/2020 11/09/2020
San Diego Unified School District 10/25/2022 12/12/2022
San Diego Unified School District 10/25/2022 08/23/2023
San Bernardino City Unified School District 11/04/2019 06/02/2020
Salinas City Elementary School District 12/22/2024 01/27/2025
Saddleback Valley Unified School District 11/04/2019 06/24/2020
Rocklin Unified School District 11/04/2019 06/02/2020
Rocklin Unified School District 12/28/2021, 01/08/2022 05/04/2022
Rocklin Unified School District n/a 09/18/2020
Riverdale Joint Unified School District 03/18/2025 03/27/2025
River Delta Unified School District 12/20/2023 09/16/2024
Red Bluff Joint Union High School District 11/04/2019 06/29/2020
Rancho Santa Fe School District 12/22/2024 01/10/2025
Ramona Unified School District 12/22/2024 01/13/2025
PowerSchool Group LLC 12/19/2024, 12/28/2024 01/27/2025