HackingTechnologyInformationData ExfiltratedCustomer Data InvolvedPIIIdentity (basic)Government IDFinancial accountMediumContained

Marquis Software Solutions, Inc.

bd_2d2cd700dce00026 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 14, 2025

Filed

Nov 26, 2025

To disclose

15 weeks

Affected

Not disclosed

Linked

20 filings

Confidence

67%

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

Marquis Software Solutions, Inc. disclosed a cybersecurity incident on August 14, 2025, where an unauthorized third party accessed its network and copied files containing personal information. The incident was limited to Marquis' environment, not the data owner's internal systems. Marquis engaged cybersecurity experts and law enforcement, and is offering credit monitoring services to affected individuals.

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Incident timeline

discovery → filing · 15 weeks / 104 days

Aug 14, 2025

Discovered

Nov 26, 2025

Filed

vs. sector median

4 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 · +6dVerified
California State AGbd_585c0df55a8ee5582025-12-02 · +6dVerified
Oregon State AGbd_f38f456e451eb3742025-12-15 · +19dVerified
New Hampshire State AGbd_e24c796a906bacca2025-12-26 · +30dVerified

Show 6 more filings ↓up to 117d gap

New Hampshire State AGbd_71f70739546a44c32026-02-11 · +77dVerified by operator
California State AGbd_f5765c41630ad2642026-02-11 · +77dVerified by operator
Vermont State AGbd_169927bcdd189b0d2026-03-16 · +110dVerified
California State AGbd_1d9640ddb1ce649d2026-03-16 · +110dVerified
Maine State AGbd_1a8018e5fbd9c9f22026-03-17 · +111dVerified
New Hampshire State AGbd_8dc11eb2de4d50f12026-03-23 · +117dVerified

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
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Launched an investigation
Engaged the appropriate cybersecurity experts to assist
Promptly notified law enforcement
Offering you a complimentary 12 month membership of Epiq Privacy Solutions ID
Changes made: Taken steps to reduce the risk of this type of incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(104 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 · 6 states

View merged incident ↗

Delaware State AGNov 26 · first · this page

Maine State AG+6d

California State AG+6d

Oregon State AG+19d

New Hampshire State AG+30d

New Hampshire State AG+77d

California State AG+77d

Vermont State AG+110d

California State AG+110d

Maine State AG+111d

New Hampshire State AG+117d

Pattern: first filing Nov 26 (DE), last Mar 23 (NH) — a 117-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://attorneygeneral.delaware.gov/wp-content/uploads/sites/50/2026/01/Marquis_Consumer-Notification-Letter.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 26, 2025
Raw hash: 5255c35dd393a2d4cc9933edae71c66250a63eaf7089592f22c7997cd1f3d245

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 provenanceattorneygeneral.delaware.gov