HackingEducationEducationStolen CredentialsTargetedIdentity (basic)Government IDMediumContained

Grinnell College

bd_6d6d3115d0c4c181 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 7, 2019

Filed

Mar 25, 2019

To disclose

18 days

Affected

9state residents only

Linked

2 filings

Confidence

65%

Full breach record for Grinnell College →4 incidents on file

Grinnell College issued a supplemental notification to Montana residents regarding a March 7, 2019, unauthorized access to its admission-related information system. The incident exposed names, addresses, dates of birth, and Social Security numbers. The college engaged forensic professionals and law enforcement, and offered two years of credit monitoring.

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Incident timeline

discovery → filing · 18 days

Mar 7, 2019

Begins

Mar 7, 2019

Discovered

Mar 25, 2019

Filed

vs. sector median

6 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

New Hampshire State AGbd_120bdc85651e39812019-03-29 · +4dVerified

Name: Grinnell College
norm: grinnell college

Name: Grinnell College
norm: grinnell college
Industry: Educationllm

Discovered: Mar 7, 2019
Breach occurred: Mar 7, 2019
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 9state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Commenced a prompt and thorough investigation
Working very closely with external cybersecurity professionals and law enforcement
Offering a complimentary two-year membership of Experian IdentityWorks Credit 3B
Changes made: Modified our practices to enhance the security and privacy of your personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 days(18 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Montana State AGMar 25 · first · this page

New Hampshire State AG+4d

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://dojmt.gov/wp-content/uploads/OCP/CON-Grinnell-College-Notification-to-Montana-AG-with-enclosure-7985645x7AB84.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 25, 2019
Raw hash: e5b387c89e97351b5856f9d3f025877d8b1317e05b50dc785efb051f46931f4b

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityGrinnell College

Victim entityGrinnell College

Incidentdiscovered Mar 7, 2019

Stated responseCommenced a prompt and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov