MisuseEducationEducationData MishandlingEmployee Data InvolvedPIIIdentity (basic)Government IDFinancialMediumContained

Grinnell College

bd_4f20627998540535 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 7, 2023

Filed

Sep 29, 2023

To disclose

21 weeks

Affected

Not disclosed

Linked

6 filings

Confidence

66%

Full breach record for Grinnell College →4 incidents on file

Grinnell College disclosed that an employee inadvertently moved payroll files to a shared internal folder accessible by any user with credentials. The files contained names, addresses, SSNs, and salary/tax info. No external access or misuse was detected. The incident was contained on the day of discovery (May 7, 2023), and affected individuals were offered credit monitoring.

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Vermont clock✗ VT AG >45 bday21 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 55 days

discovery → filing · 21 weeks / 145 days

Mar 13, 2023

Begins

May 7, 2023

Discovered

Sep 29, 2023

Filed

This filing is one of 6 filings 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
Maine State AGbd_5102201eb428ab792023-09-29Verified
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

Name: Grinnell College
norm: grinnell college
Industry: Educationllm

Discovered: May 7, 2023
Breach occurred: Mar 13, 2023 – May 7, 2023
Undetected for: 55 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 29, 2023
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)Government IDFinancial
Data elements: Social Security number
Attack vector: Insider
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: Internal
Regulator citations: Reporting this incident to the relevant authorities
Initial access: insider_action

During the incident: Initiated protocols designed to protect the data
Performed forensic examinations to identify potential exposure
Remediated the situation on the same day
Engaged a leading data security and privacy firm to assist our investigation and response
Conducted a thorough analysis of available logs
Changes made: Provided additional training to employees on file sharing permissions and protocols
Investigating additional technical safeguards to improve the security of our information systems
Offering a complimentary membership in Experian IdentityWorks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 weeks(145 days from discovery to filing)
Compliance flags: VT AG >45 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

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

Maine State AGSep 29 · first

Indiana State AGSep 29 · first

Vermont 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://ago.vermont.gov/document/2023-09-29-grinnell-college-data-breach-notice-consumers
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: 337c0f34eaea9fe9f4722b3eacddb90fba9f725f8e1ae43a3697e44aea0e59f9

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityGrinnell College

Victim entityGrinnell College

Incidentdiscovered May 7, 2023

Stated responseInitiated protocols designed to protect the data

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov