Social EngineeringTechnologyInformationPhishingStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Horizon Media

bd_33a60a56d229fca9 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 9, 2026

Filed

May 6, 2026

To disclose

17 weeks

Affected

1state residents only

Linked

7 filings

Confidence

66%

Full breach record for Horizon Media →

Horizon Media reported a data breach on January 9, 2026, where an unauthorized actor gained access to systems via a sophisticated social engineering event. The incident affected one Maine resident, exposing names and Social Security numbers. Horizon notified federal law enforcement, offered 24 months of Experian credit monitoring, and is improving its cybersecurity posture.

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Maine clockDiscovered Jan 9, 2026 → Filed with AG May 6, 2026117d ✗ ME AG >90d17 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 · 17 weeks / 117 days

Jan 9, 2026

Begins

Jan 9, 2026

Discovered

May 6, 2026

Filed

vs. sector median

2 wks faster

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Vermont State AGbd_21c32db152c9109c2026-05-06Verified
California State AGbd_28d7120ce69782f92026-05-06Verified
Massachusetts State AGbd_611b6f87032f6dba2026-05-06Candidate
Nebraska State AGbd_681520a53377c51c2026-05-06Verified

Show 2 more filings ↓

Indiana State AGbd_6bb727b2cb7f614b2026-05-06Verified
New Hampshire State AGbd_9b8a4ac6ec45f9a62026-05-06Verified

Name: Horizon Media
norm: horizon media
Domain: horizonmedia.com

Name: Horizon Media
norm: horizon media
Domain: horizonmedia.com
Industry: Technologyllm

Discovered: Jan 9, 2026
Breach occurred: Jan 9, 2026
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 6, 2026
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: notified relevant state, as necessarynotified the three major credit reporting agencies, Equifax, Experian, and TransUnion
Initial access: phishing_link

During the incident: Began an investigation to ensure the event was contained
Notified federal law enforcement regarding the event
Offering 24 months of credit monitoring services through Experian at no cost
Changes made: Assessing its policies, procedures, and infrastructure
Making improvements to its cybersecurity posture to reduce the chances of an event like this recurring
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(117 days from discovery to filing)
Compliance flags: ME AG >90d · 117d
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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Jan 9, 2026
→ Filed with AG: May 6, 2026
117d 90 days ME AG >90d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jan 9, 2026 → Filed with AG: May 6, 2026	117d	90 days	ME AG >90d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 7 states

View merged incident ↗

Vermont State AGMay 6 · first

California State AGMay 6 · first

Massachusetts State AGMay 6 · first

Nebraska State AGMay 6 · first

Indiana State AGMay 6 · first

New Hampshire State AGMay 6 · first

Maine State AGMay 6 · 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/f5a77f3f-51ef-4375-a3fb-d15e8e119321.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 6, 2026
Raw hash: e9fce61b59007911ca007cce8f69e3a57f3d69e8dfb454446731192b56912b83

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityHorizon Media

Victim entityHorizon Media

Incidentdiscovered Jan 9, 2026

Stated responseBegan an investigation to ensure the event was contained

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov