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Latest / California / December 2021

University of Southern California

University of Southern California notified California AG on Dec 22, 2021 of a data breach, which occurred on Sep 28, 2021. Data exposed: Social Security number, Name.

All 4 filings by University of Southern California, state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
University of Southern California
Source
California AG · source record
Date reported
Dec 22, 2021
Date(s) of breach
Tuesday, September 28, 2021
Residents affected
Not published by this source
Data exposed
Social Security number Name
Notice letter
Sample notice (PDF)
Discovered
Oct 1, 2021, as stated in the letter
"On October 1, 2021, USC learned that a professor lost an external hard drive on or about September 28, 2021."
Days to notice
82 days from discovery (Oct 1, 2021) to the California record (Dec 22, 2021). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82). Over the statutory period
Offered in the letter
credit or identity monitoring through Experian
First seen by BreachTally
2026-10-30 16:04 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

First seen by BreachTally at 16:04 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
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Other filings by University of Southern California

OrganizationSourceStateReportedResidents affectedData exposed
University of Southern California California AG CA May 5, 2022 Not published Name
University of Southern California, on behalf of KUSC California AG CA Jul 11, 2016 Not published In the letter (PDF)
University of Southern California California AG CA Jun 29, 2012 Not published Financial / bank account

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.