HackingOtherCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Sellers Publishing

bd_b45f5b86e8ba5943 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 4, 2025

Filed

Mar 10, 2026

To disclose

18 weeks

Affected

73state residents only

Linked

8 filings

Confidence

66%

Full breach record for Sellers Publishing →

Sellers Publishing, Inc. reported an external system breach (hacking) on November 4, 2025, affecting 73 Maine residents. Personal information, including names and Social Security numbers, was potentially accessed. The company engaged forensic experts, isolated systems, and offered 12 months of credit monitoring. Notification was sent on March 10, 2026.

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Maine clockDiscovered Nov 4, 2025 → Filed with AG Mar 10, 2026126d ✗ ME AG >90d18 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 · 18 weeks / 126 days

Nov 4, 2025

Begins

Nov 4, 2025

Discovered

Mar 10, 2026

Filed

vs. sector median

+10 wks slower

This filing is one of 8 about the same incident.View merged incident

A leak claim by play about this victim predates this filing by 125 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteplaybd_52820c015dd2db082025-11-05 · +125dVerified by operator

Regulatory filings (6) · sorted by filing gap

Indiana State AGbd_7bca642656905d832026-03-10Verified
Indiana State AGbd_a8f8115a0d0ad0d82026-03-10Verified by operator
Vermont State AGbd_c782ad26f1b20afd2026-03-10Verified by operator
Nebraska State AGbd_cf4101f1ea2fe28b2026-03-10Verified by operator

Show 2 more filings ↓up to 7d gap

New Hampshire State AGbd_958d7854db4559432026-03-16 · +6dVerified by operator
Massachusetts State AGbd_5601383467c567302026-03-17 · +7dVerified by operator

Name: CLARK HILL PLC
norm: clark hill

Name: Sellers Publishing
norm: sellers publishing
Domain: rsvp.com
Industry: Otherllm

Discovered: Nov 4, 2025
Breach occurred: Nov 4, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 10, 2026
Affected individuals: 73state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Regulator citations: Filed notification with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Implemented incident response protocols
Took steps to isolate server from the network
Engaged independent computer forensic experts to assist with an investigation
Offering 12 months of complimentary credit monitoring through TransUnion/Cyberscout
Changes made: Changing user passwords
Deploying endpoint monitoring and detection tools throughout IT environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 weeks(126 days from discovery to filing)
Compliance flags: ME AG >90d · 126dLeak >90d
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: Nov 4, 2025
→ Filed with AG: Mar 10, 2026
126d 90 days ME AG >90d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Nov 4, 2025 → Filed with AG: Mar 10, 2026	126d	90 days	ME AG >90d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 6 states

View merged incident ↗

Indiana State AGMar 10 · first

Vermont State AGMar 10 · first

Nebraska State AGMar 10 · first

Maine State AGMar 10 · first · this page

New Hampshire State AG+6d

Massachusetts State AG+7d

Pattern: first filing Mar 10 (IN), last Mar 17 (MA) — a 7-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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/a14e0fca-0983-429b-806d-3aec483aa591.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 10, 2026
Raw hash: 7fe4394cdd17f9565113d1888379b25a3109834a55c693f1a5be22c204cb9345

Linked disclosures

Ransomware claims (1)

Regulatory filings (6) · sorted by filing gap

Reporting entityCLARK HILL PLC

Victim entitySellers Publishing

Incidentdiscovered Nov 4, 2025

Stated responseImplemented incident response protocols

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov