MalwareTechnologyInformationRansomwareVulnerability ExploitData ExfiltratedCustomer Data InvolvedDownstream VictimsIdentity (basic)Government IDFinancial accountHighContained

Marquis Software Solutions, Inc.

bd_28f622c35f082220 · schema v1 · pii pii-v1

Severity

High

Discovered

Aug 14, 2025

Filed

Dec 1, 2025

To disclose

16 weeks

Affected

62,000state residents only

Linked

20 filings

Confidence

64%

Full breach record for Marquis Software Solutions, Inc. →5 incidents on file

Marquis Software Solutions, Inc. experienced a ransomware attack on August 14, 2025, when an unauthorized third party accessed its network via a SonicWall firewall. The attacker may have acquired files containing personal information of New Hampshire residents, including names, addresses, SSNs, and financial account data. Marquis engaged forensic experts, contained the incident, and is offering credit monitoring. Notifications to affected individuals began November 26, 2025.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 16 weeks / 109 days

Aug 14, 2025

Begins

Aug 14, 2025

Discovered

Dec 1, 2025

Filed

vs. sector median

3 wks faster

This filing is one of 20 about the same incident.View merged incident

Part of Marquis Software Solutions, Inc. supply-chain incident (2025) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Maine State AGbd_125c270075864cd92025-12-02 · +1dVerified
California State AGbd_585c0df55a8ee5582025-12-02 · +1dVerified
Oregon State AGbd_f38f456e451eb3742025-12-15 · +14dVerified
New Hampshire State AGbd_e24c796a906bacca2025-12-26 · +25dVerified

Show 6 more filings ↓up to 112d gap

New Hampshire State AGbd_71f70739546a44c32026-02-11 · +72dVerified by operator
California State AGbd_f5765c41630ad2642026-02-11 · +72dVerified by operator
Vermont State AGbd_169927bcdd189b0d2026-03-16 · +105dVerified
California State AGbd_1d9640ddb1ce649d2026-03-16 · +105dVerified
Maine State AGbd_1a8018e5fbd9c9f22026-03-17 · +106dVerified
New Hampshire State AGbd_8dc11eb2de4d50f12026-03-23 · +112dVerified

Showing first 10 of 19 linked disclosures.

Name: Marquis Software Solutions, Inc.
norm: marquis software

Name: Marquis Software Solutions, Inc.
norm: marquis software
Industry: Technologyllm

Discovered: Aug 14, 2025
Breach occurred: Aug 14, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 26, 2025
Affected individuals: 62,000state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 ChannelT1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: exploit_public_facing

During the incident: Launched an investigation
Engaged cybersecurity experts through legal counsel to assist
Notified federal law enforcement
Conducted a thorough review of the files potentially accessed by the unauthorized party with the assistance of a dedicated review team
Took immediate steps to contain the ransomware attack
Secured its network environment
Identified potentially affected clients and individuals
Changes made: Implemented additional security technologies and processes to bolster overall security
Offering complimentary credit monitoring and identity theft protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 weeks(109 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 5 states

View merged incident ↗

New Hampshire State AGDec 1 · first · this page

Maine State AG+1d

California State AG+1d

Oregon State AG+14d

New Hampshire State AG+25d

New Hampshire State AG+72d

California State AG+72d

Vermont State AG+105d

California State AG+105d

Maine State AG+106d

New Hampshire State AG+112d

Pattern: first filing Dec 1 (NH), last Mar 23 (NH) — a 112-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 19 — the full spread may be wider.

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/marquis-software-solutions-20251201.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 1, 2025
Raw hash: 92d28d9d548119b2c0742e8688ad361ed664643e259bdb6763b16f0c3dc358a7

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityMarquis Software Solutions, Inc.

Victim entityMarquis Software Solutions, Inc.

Incidentdiscovered Aug 14, 2025

Stated responseLaunched an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov