PhysicalEducationEducationLossEmployee Data InvolvedCustomer Data InvolvedEducationIdentity (basic)LowResolved

UNIVERSITY OF SOUTHERN CALIFORNIA

bd_225c2aa965cadb54 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 1, 2021

Filed

May 5, 2022

To disclose

31 weeks

Affected

Not disclosed

Linked

7 filings

Confidence

64%

Full breach record for UNIVERSITY OF SOUTHERN CALIFORNIA →3 incidents on file

University of Southern California (USC) notified individuals that a professor lost an external hard drive on September 28, 2021. USC learned of the loss on October 1, 2021. The drive contained student academic information, including grade sheets. USC investigated and determined that some personal information may have been stored on the device. No evidence of misuse was found. USC offered complimentary identity theft protection services.

J jump to incidentP pin to compareR raw source

California clockDiscovered Oct 1, 2021 → Notified Apr 26, 2022207d ✗ CA 60-day late31 weeks discovery → filing

Incident timeline

undetected · 3 days

discovery → filing · 31 weeks / 216 days

Sep 28, 2021

Begins

Oct 1, 2021

Discovered

May 5, 2022

Filed

This filing is one of 7 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

New Hampshire State AGbd_06e865c633561db82022-05-06 · +1dVerified
Maine State AGbd_4962b25312de3ec32021-12-28 · +128dVerified by operator
Massachusetts State AGbd_0ed3ac6308a371702021-12-22 · +134dVerified
California State AGbd_7b12e5e380e420fc2021-12-22 · +134dVerified

Show 2 more filings ↓up to 154d gap

Montana State AGbd_a24a34dbd24aff6e2021-12-02 · +154dCandidate
Indiana State AGbd_cb71465ebb99feaf2021-12-02 · +154dVerified

Name: UNIVERSITY OF SOUTHERN CALIFORNIA
norm: university of southern california

Name: UNIVERSITY OF SOUTHERN CALIFORNIA
norm: university of southern california
Industry: Educationllm

Discovered: Oct 1, 2021
Breach occurred: Sep 28, 2021
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 26, 2022
Affected individuals: Not disclosed
Data types: EducationIdentity (basic)
Attack vector: Unknown
MITRE ATT&CK: T1052 Exfiltration Over Physical Medium

During the incident: Initiated an investigation and a review of available backups of the hard drive data
Launched a comprehensive review of the data stored on the device
Took steps to gather contact information needed to provide notification to potentially affected individuals
Reviewed its data security policies with the professor in an effort to prevent a similar incident occurring in the future
Offering complimentary identity theft protection services through IDX
Changes made: Reviewed its data security policies with the professor in an effort to prevent a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 31 weeks(216 days from discovery to filing)
Compliance flags: CA 60-day late · 207d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Oct 1, 2021
→ Notified: Apr 26, 2022
207d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Oct 1, 2021 → Notified: Apr 26, 2022	207d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 6 states

View merged incident ↗

Montana State AGDec 2 · first

Indiana State AGDec 2 · first

Massachusetts State AG+20d

California State AG+20d

Maine State AG+26d

California State AG+154d · this page

New Hampshire State AG+155d

Pattern: first filing Dec 2 (MT), last May 6 (NH) — a 155-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://oag.ca.gov/ecrime/databreach/reports/sb24-553141
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 5, 2022
Raw hash: 10cabcb75aeb011a9aece30213beb6ef8ab245efeb31dd5815cb808aeb84b65f

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityUNIVERSITY OF SOUTHERN CALIFORNIA

Victim entityUNIVERSITY OF SOUTHERN CALIFORNIA

Incidentdiscovered Oct 1, 2021

Stated responseInitiated an investigation and a review of available backups of the hard drive data

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov