MalwareEducationEducationRansomwareData EncryptedCustomer Data InvolvedIdentity (basic)PIILowContained

Stanford University

bd_627185d1ce32a5ef · schema v1 · pii pii-v1

Severity

Low

Discovered

Sep 27, 2023

Filed

Mar 11, 2024

To disclose

24 weeks

Affected

Not disclosed

Linked

6 records

Confidence

65%

Full breach record for Stanford University →8 incidents on file

Stanford University's Department of Public Safety experienced a ransomware attack. Unauthorized access occurred between May 12, 2023, and September 27, 2023, when the incident was discovered. Personal information, including names and other operational data, may have been impacted. The university notified law enforcement, engaged forensic investigators, and terminated unauthorized access. Identity theft protection services are being offered to affected individuals, including minors.

J jump to incidentP pin to compareR raw source

California clockDiscovered Sep 27, 2023 → Notified Mar 11, 2024166d ✗ CA 60-day late24 weeks discovery → filing

Incident timeline

undetected · 138 days

discovery → filing · 24 weeks / 166 days

May 12, 2023

Begins

Sep 27, 2023

Discovered

Mar 11, 2024

Filed

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

A leak claim by akira about this victim was first seen 136 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteakirabd_c456cec6ac50c0ce2023-10-27 · +136dCandidate

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_1f689b306e32c7272024-03-11Candidate
Indiana State AGbd_444b5eabd69c11122024-03-11Verified
Vermont State AGbd_6c733f263a4412bc2024-03-11Verified
Maine State AGbd_d0676eeba016b1812024-03-11Verified

Name: Stanford University
norm: stanford university
Domain: stanford.edu

Name: Stanford University
norm: stanford university
Domain: stanford.edu
Industry: Educationllm

Discovered: Sep 27, 2023
Breach occurred: May 12, 2023 – Sep 27, 2023
Undetected for: 138 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 11, 2024
Affected individuals: Not disclosed
Data types: Identity (basic)PII
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial

During the incident: Notified federal and local law enforcement
Began investigating the incident with the assistance of a respected forensic investigator
Worked with external cybersecurity experts to terminate the unauthorized access
Changes made: Further enhancing its security safeguards
Offering identity theft protection services through IDX, a ZeroFox company
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 weeks(166 days from discovery to filing)
Compliance flags: CA 60-day late · 166dLeak >90d
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: Sep 27, 2023
→ Notified: Mar 11, 2024
166d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Sep 27, 2023 → Notified: Mar 11, 2024	166d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Massachusetts State AGMar 11 · first

Indiana State AGMar 11 · first

Vermont State AGMar 11 · first

Maine State AGMar 11 · first

California State AGMar 11 · 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://oag.ca.gov/ecrime/databreach/reports/sb24-582249
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 11, 2024
Raw hash: 2e814af149d913caceac61fd3685e1821ba5a4c0adbdb467ac22321e3136b945

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityStanford University

Victim entityStanford University

Incidentdiscovered Sep 27, 2023

Stated responseNotified federal and local law enforcement

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov