HackingEducationEducationData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)Financial accountHealth (basic)HighContained

California Northstate University

bd_ab1d8a5c45f50540 · schema v1 · pii pii-v1

Severity

High

Discovered

Nov 2, 2023

Filed

Dec 21, 2023

To disclose

7 weeks

Affected

5,964state residents only

Linked

6 filings

Confidence

70%

Full breach record for California Northstate University →

California Northstate University experienced unauthorized access to its computer systems between February 12-13, 2023. The incident potentially exposed Washington residents' names, Social Security numbers, driver's license numbers, financial account numbers, passport numbers, medical information, and dates of birth. Approximately 5,964 individuals were affected. Notifications were mailed starting December 21, 2023, offering credit monitoring services.

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Washington clock⏱ WA AG >30d7 weeks discovery → filing

Incident timeline

undetected · 263 days

discovery → filing · 7 weeks / 49 days

Feb 12, 2023

Begins

Nov 2, 2023

Discovered

Dec 21, 2023

Filed

vs. sector median

3 wks faster

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Maine State AGbd_208851ca8a484b1e2023-12-21Candidate
Montana State AGbd_560a35d3ee2fd0392023-12-21Verified by operator
New Hampshire State AGbd_ba7f861da3b47dd52023-12-21Verified
California State AGbd_c9595e7fbac854462023-12-21Verified

Show 1 more filing ↓

Massachusetts State AGbd_f5c4183370022f722023-12-21Verified

Name: California Northstate University
norm: california northstate university

Name: California Northstate University
norm: california northstate university
Industry: Educationllm

Discovered: Nov 2, 2023
Breach occurred: Feb 12, 2023 – Feb 13, 2023
Undetected for: 263 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 21, 2023
Affected individuals: 5,964state-resident count only
Data types: Government IDIdentity (basic)Financial accountHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Secured the systems involved
Began an investigation
Mail notification letters via United States Postal Service First-Class mail
Offering credit monitoring and identity theft protection service through Experian
Established a dedicated, toll-free call center
Changes made: Implemented additional security measures to enhance the security of its network
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(49 days from discovery to filing)
Compliance flags: WA AG >30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Maine State AGDec 21 · first

Montana State AGDec 21 · first

New Hampshire State AGDec 21 · first

California State AGDec 21 · first

Massachusetts State AGDec 21 · first

Washington State AGDec 21 · first · this page

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA27368.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 21, 2023
Raw hash: b5149a85e1c7a75adaae7140c2f835e9b3cc40e9a395a70fd4aa667e2767f95e

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityCalifornia Northstate University

Victim entityCalifornia Northstate University

Incidentdiscovered Nov 2, 2023

Stated responseSecured the systems involved

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com