MalwareOtherRansomwareCapture Stored DataData EncryptedData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Watermark Marine Systems

bd_112b251175a492a7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 9, 2025

Filed

Aug 6, 2025

To disclose

8 weeks

Affected

150state residents only

Linked

2 records

Confidence

66%

Full breach record for Watermark Marine Systems →

Watermark Marine Systems, LLC experienced a ransomware incident where systems were encrypted and unauthorized actors accessed files between June 9-13, 2025. The breach affected 150 New Hampshire residents (and one Rhode Island resident), exposing names and Social Security numbers. The company contained the incident, engaged a cybersecurity firm, and is offering one year of credit monitoring.

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Leak gap clock⏱ Leak >30d8 weeks discovery → filing

Incident timeline

discovery → filing · 8 weeks / 58 days

Jun 9, 2025

Begins

Jun 9, 2025

Discovered

Aug 6, 2025

Filed

vs. sector median

+2 wks slower

This filing is one of 2 records about the same incident.View merged incident

A leak claim by akira about this victim was first seen 36 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteakirabd_5b6337b6de41d9462025-06-30 · +37dCandidate

Name: Watermark Marine Systems
norm: watermark marine
Domain: watermarkmarine.com

Name: Watermark Marine Systems
norm: watermark marine
Domain: watermarkmarine.com
Industry: Otherllm

Discovered: Jun 9, 2025
Breach occurred: Jun 9, 2025 – Jun 13, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 6, 2025
Affected individuals: 150state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Attorney General John Formella, Office of the Attorney General, NH

During the incident: Took measures to contain the activity
Launched an investigation with assistance from a cybersecurity firm
Mailing notification letters via U.S. First-Class mail to the involved individuals
Offering a complimentary, one-year membership to credit monitoring and identity protection services
Established a dedicated, toll-free call center
Changes made: Taken steps to enhance its security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(58 days from discovery to filing)
Compliance flags: Leak >30d
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.

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/watermark-marine-systems-20250806.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 6, 2025
Raw hash: 90194d2a1143198dbc152c001ba0f2dd52e8a31f318e3a9f1c522815f2584f30

Linked disclosures

Ransomware claims (1)

Reporting entityWatermark Marine Systems

Victim entityWatermark Marine Systems

Incidentdiscovered Jun 9, 2025

Stated responseTook measures to contain the activity

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov