MalwareGovernmentEducationGovernmentRansomwareCapture Stored DataData ExfiltratedData EncryptedTargetedPIIIdentity (basic)LowActive

Colorado Department of Higher Education

bd_7b2570b2e2a68d99 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jun 19, 2023

Filed

Feb 15, 2024

To disclose

34 weeks

Affected

5state residents only

Linked

2 filings

Confidence

63%

Full breach record for Colorado Department of Higher Education →

Colorado Department of Higher Education (CDHE) notified Montana residents of a ransomware incident discovered June 19, 2023. Unauthorized actors accessed systems between June 11-19, 2023, copying personal information. CDHE engaged third-party investigators, restored systems, and offers 24 months of credit monitoring via Experian. Investigation remains ongoing.

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Incident timeline

undetected · 8 days

discovery → filing · 34 weeks / 241 days

Jun 11, 2023

Begins

Jun 19, 2023

Discovered

Feb 15, 2024

Filed

vs. sector median

+24 wks slower

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

Indiana State AGbd_13e5de295e070d2d2024-02-15Verified

Name: Colorado Department of Higher Education
norm: colorado department of higher education
Domain: cdhe.colorado.gov

Name: Colorado Department of Higher Education
norm: colorado department of higher education
Domain: cdhe.colorado.gov
Industry: GovernmentllmEducationllm

Discovered: Jun 19, 2023
Breach occurred: Jun 11, 2023 – Jun 19, 2023
Undetected for: 8 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 15, 2024
Affected individuals: 5state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Took steps to secure the network
Working with third-party specialists to conduct a thorough investigation
Restored its systems and return to normal operations
Conducted a thorough review of the data to determine what specific information was present
Provided notice of this incident on its website and through the media on August 4, 2023
Offering two years of free credit monitoring and identity theft protection services through Experian
Changes made: Reviewing its policies and procedures
Implementing additional cybersecurity safeguards to further protect its systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 34 weeks(241 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 ↗

Indiana State AGFeb 15 · first

Montana State AGFeb 15 · 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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-1106.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 15, 2024
Raw hash: 8c3a0bbcddb764bad254c4374aebc0a8d93d8ae5e6a5b020abf0f904bddb2fe9

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityColorado Department of Higher Education

Victim entityColorado Department of Higher Education

Incidentdiscovered Jun 19, 2023

Stated responseTook steps to secure the network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov