HackingEducationTechnologyEducationStolen CredentialsCapture Stored DataData ExfiltratedEmployee Data InvolvedTargetedPIIIdentity (basic)EmploymentLowContained

Kendall Hunt Publishing Company

bd_a8378c6ab19c1dd6 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jan 20, 2023

Filed

Apr 14, 2023

To disclose

12 weeks

Affected

1state residents only

Linked

4 filings

Confidence

66%

Full breach record for Kendall Hunt Publishing Company →2 incidents on file

Kendall Hunt Publishing Company notified the NH AG of a cyberattack on or before Jan 20, 2023, where an unauthorized actor accessed and downloaded limited internal HR data. One NH resident affected. Notification sent April 10, 2023. Remediation included credit monitoring and security enhancements.

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Leak gap clock⏱ Leak >30d12 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 12 weeks / 84 days

Jan 20, 2023

Begins

Jan 20, 2023

Discovered

Apr 14, 2023

Filed

vs. sector median

+3 wks slower

This filing is one of 4 about the same incident.View merged incident

A leak claim by alphv about this victim predates this filing by 51 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitealphvbd_2f023c52ecbc60e02023-02-22 · +51dVerified by operator

Regulatory filings (2) · sorted by filing gap

Indiana State AGbd_6835cc97e55093fc2023-04-10 · +4dVerified
Massachusetts State AGbd_bc4266563d68e3cd2023-04-10 · +4dVerified by operator

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Kendall Hunt Publishing Company
norm: kendall hunt publishing
Domain: he.kendallhunt.com
Industry: EducationllmTechnologyllm

Discovered: Jan 20, 2023
Breach occurred: Jan 20, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 10, 2023
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)Employment
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Office of the New Hampshire Attorney GeneralNotified federal law enforcement

During the incident: Worked to secure its systems
Commenced an investigation to confirm the nature and scope of the activity
Promptly notified federal law enforcement
Provided preliminary notice of this event to employees
Provided written notice of this event to affected individuals
Reported the event to federal law enforcement
Working to implement additional technical and administrative safeguards
Training to its employees
Providing access to credit monitoring and identity restoration services for two (2) years, through Experian
Changes made: Implemented additional technical measures to further enhance our security posture
Reviewed and updated existing policies and procedures relating to data security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(84 days from discovery to filing)
Compliance flags: Leak >30d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Indiana State AGApr 10 · first

Massachusetts State AGApr 10 · first

New Hampshire State AG+4d · 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://mm.nh.gov/files/uploads/doj/remote-docs/kendall-hunt-publishing-20230414.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 14, 2023
Raw hash: 25f0a65ea810023d871a7b40ecfb576068b9508d91de7ecd6c38b361b26ecc9d

Linked disclosures

Ransomware claims (1)

Regulatory filings (2) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityKendall Hunt Publishing Company

Incidentdiscovered Jan 20, 2023

Stated responseWorked to secure its systems

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov