HackingEducationEducationStolen CredentialsTargetedIdentity (basic)Health (basic)Government IDMediumContained

Hamilton College

bd_a9bcaab54d04430e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 14, 2019

Filed

Jun 12, 2019

To disclose

—

Affected

1state residents only

Linked

3 filings

Confidence

65%

Full breach record for Hamilton College →

Hamilton College disclosed that an unauthorized individual accessed its admissions platform between March 2-4, 2019. The college discovered the incident on June 14, 2019, after forensic review. Accessible data included names, health/medical information, and potentially government IDs (passport/visa) from supplemental application materials. SSNs and credit card info were encrypted and inaccessible. The college engaged law enforcement and forensic experts.

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Incident timeline

undetected · 104 days

discovery → filing · ≤1 day / 0 days

Mar 2, 2019

Begins

Jun 14, 2019

Discovered

Jun 12, 2019

Filed

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_6638daafc7391d392019-06-17 · +5dVerified
New Hampshire State AGbd_206ac221ea0364912019-07-12 · +30dVerified

Name: Hamilton College
norm: hamilton college

Name: Hamilton College
norm: hamilton college
Industry: Educationllm

Discovered: Jun 14, 2019
Breach occurred: Mar 2, 2019 – Mar 4, 2019
Undetected for: 104 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 12, 2019
Affected individuals: 1state-resident count only
Data types: Identity (basic)Health (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: worked very closely with law enforcement
Initial access: valid_credentials

During the incident: Began a prompt and thorough investigation
Worked very closely with law enforcement and external cybersecurity professionals
Conducted an extensive forensic investigation and manual document review
Changes made: Continually evaluate and modify practices to enhance the security and privacy of your information
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Montana State AGJun 12 · first · this page

Massachusetts State AG+5d

New Hampshire State AG+30d

Pattern: first filing Jun 12 (MT), last Jul 12 (NH) — a 30-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/Breach-NotificationDetails-31.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 12, 2019
Raw hash: 31f9d0b4648b54fd3a79bcd38ced8075af1c3b9e60bdef2b4a257bac3c71c809

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityHamilton College

Victim entityHamilton College

Incidentdiscovered Jun 14, 2019

Stated responseBegan a prompt and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov