HackingEducationEducationVulnerability ExploitData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

Stanford University

bd_d0676eeba016b181 · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 27, 2023

Filed

Mar 11, 2024

To disclose

24 weeks

Affected · nationwide

27,0003 in this filing

Linked

6 filings

Confidence

66%

Full breach record for Stanford University →8 incidents on file

Stanford University reported an external system breach (hacking) occurring on May 12, 2023, discovered on September 27, 2023. The incident compromised names and Social Security Numbers of 27,000 individuals, including 3 Maine residents. Stanford notified affected individuals in writing on March 11, 2024, and provided 24 months of credit monitoring and identity protection services through IDX and TransUnion.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Sep 27, 2023 → Filed with AG Mar 11, 2024166d ✗ ME AG >90d24 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 138 days

discovery → filing · 24 weeks / 166 days

May 12, 2023

Begins

Sep 27, 2023

Discovered

Mar 11, 2024

Filed

vs. sector median

+17 wks slower

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

A leak claim by cl0p about this victim predates this filing by 444 days.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
California State AGbd_627185d1ce32a5ef2024-03-11Verified
Vermont State AGbd_6c733f263a4412bc2024-03-11Verified

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
Undetected for: 138 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 11, 2024
Affected individuals: 27,000state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Offered 24 months of complimentary credit monitoring (if eligible) and identity protection services through IDX and TransUnion
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 weeks(166 days from discovery to filing)
Compliance flags: ME AG >90d · 166dLeak >180dME resident >60d · 166d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Sep 27, 2023
→ Filed with AG: Mar 11, 2024
166d 90 days ME AG >90d
Maine
Discovered: Sep 27, 2023
→ Notified: Mar 11, 2024
166d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Sep 27, 2023 → Filed with AG: Mar 11, 2024	166d	90 days	ME AG >90d
Maine	Discovered: Sep 27, 2023 → Notified: Mar 11, 2024	166d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

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

California State AGMar 11 · first

Vermont State AGMar 11 · first

Maine 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/252b8b97-93b8-4b95-9657-4c84bb1940f4.shtml
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: 4f436f3db073d5a2cc2df8c1d69fa2f03c93540f4e7dac47e96e78265dfc0fc1

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityStanford University

Victim entityStanford University

Incidentdiscovered Sep 27, 2023

Stated responseSent written notification to affected individuals

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov