HackingTelecom & MediaInformationCustomer Data InvolvedPIIIdentity (basic)MinorMediumContained

American Public Television

bd_c854a7bcb3ae9902 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 8, 2025

Filed

Feb 27, 2026

To disclose

25 weeks

Affected

Not disclosed

Linked

2 filings

Confidence

65%

Full breach record for American Public Television →2 incidents on file

American Public Television detected suspicious network activity on September 8, 2025. An unauthorized third party accessed the network from September 5-8, 2025. A data review completed on January 21, 2026, confirmed exposure of personal information, including data for minors. The company engaged third-party experts, secured systems, and offered credit monitoring.

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Massachusetts clock✗ MA AG >90d25 weeks discovery → filing

Incident timeline

undetected · 3 days

discovery → filing · 25 weeks / 172 days

Sep 5, 2025

Begins

Sep 8, 2025

Discovered

Feb 27, 2026

Filed

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_2c57abf0aacaad5b2026-02-27Candidate

Name: American Public Television
norm: american public television
Domain: aptonline.org

Name: American Public Television
norm: american public television
Domain: aptonline.org
Industry: Telecom & Mediallm

Discovered: Sep 8, 2025
Breach occurred: Sep 5, 2025 – Sep 8, 2025
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)Minor
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External

During the incident: Detected suspicious activity in a portion of our computer network
Began working with third-party cybersecurity experts to investigate and remediate that activity
Identified the files impacted by this event
Engaged a data-review firm to analyze the contents of those files
Further secure our systems to protect your information
Offering a complimentary membership to Experian’s IdentityWorks
Changes made: Further secure our systems to protect your information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(172 days from discovery to filing)
Compliance flags: MA AG >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

New Hampshire State AGFeb 27 · first

Massachusetts State AGFeb 27 · 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.mass.gov/doc/2026-304-american-public-television/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 27, 2026
Raw hash: 603a3f3cf99a846442c98e1a3a075cd074cf50ecfc88ce503a9618c231327232

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityAmerican Public Television

Victim entityAmerican Public Television

Incidentdiscovered Sep 8, 2025

Stated responseDetected suspicious activity in a portion of our computer network

ComplianceMA AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov