AccidentalEducationEducationMisdeliveryCustomer Data InvolvedPIIGovernment IDHighResolved

Grinnell College

bd_5102201eb428ab79 · schema v1 · pii pii-v1

Severity

High

Discovered

May 7, 2023

Filed

Sep 29, 2023

To disclose

21 weeks

Affected · nationwide

2,3196 in this filing

Linked

6 filings

Confidence

65%

Full breach record for Grinnell College →4 incidents on file

Grinnell College reported an inadvertent disclosure of personal information, including Social Security Numbers, affecting 2,319 individuals (6 in Maine). The breach occurred on March 13, 2023, and was discovered on May 7, 2023. Notification was sent on September 29, 2023, offering 12 months of Experian IdentityWorks.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered May 7, 2023 → Filed with AG Sep 29, 2023145d ✗ ME AG >90d21 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 · 55 days

discovery → filing · 21 weeks / 145 days

Mar 13, 2023

Begins

May 7, 2023

Discovered

Sep 29, 2023

Filed

vs. sector median

+12 wks slower

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

Montana State AGbd_102f4406b112fe682023-09-29Candidate
Massachusetts State AGbd_30ca495fdec57c762023-09-29Verified
Vermont State AGbd_4f206279985405352023-09-29Verified
Indiana State AGbd_73b7d505c0235ae42023-09-29Verified

Show 1 more filing ↓up to 3d gap

New Hampshire State AGbd_9ed8c50a1b6280cb2023-10-02 · +3dVerified

Name: Grinnell College
norm: grinnell college
Industry: education

Name: Grinnell College
norm: grinnell college
Industry: education
Industry: Educationllm

Discovered: May 7, 2023
Breach occurred: Mar 13, 2023
Undetected for: 55 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 29, 2023
Affected individuals: 2,319state + nationwide
Data types: PIIGovernment ID
Data elements: Social Security number
Attack vector: Unknown
MITRE ATT&CK: T1119 Automated Collection
Regulator citations: Filed data breach notice with Maine Attorney General

During the incident: Sent written notification to affected individuals
Offered 12 months of Experian IdentityWorks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 weeks(145 days from discovery to filing)
Compliance flags: ME AG >90d · 145dME resident >60d · 145d
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: May 7, 2023
→ Filed with AG: Sep 29, 2023
145d 90 days ME AG >90d
Maine
Discovered: May 7, 2023
→ Notified: Sep 29, 2023
145d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 7, 2023 → Filed with AG: Sep 29, 2023	145d	90 days	ME AG >90d
Maine	Discovered: May 7, 2023 → Notified: Sep 29, 2023	145d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Montana State AGSep 29 · first

Massachusetts State AGSep 29 · first

Vermont State AGSep 29 · first

Indiana State AGSep 29 · first

Maine State AGSep 29 · first · this page

New Hampshire State AG+3d

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/ae84d903-b287-404d-a09d-dd1efb9c652d.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 29, 2023
Raw hash: f3861525f62aac602a04397fc7dd7eeaa69cd68961c99c4c8ec6ded2e0504d68

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityGrinnell College

Victim entityGrinnell College

Incidentdiscovered May 7, 2023

Stated responseSent written notification to affected individuals

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov