HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedPIIMediumContained

Metropolitan Marine Maintenance Contractors' Association, Inc.

bd_234af4562f4ff4e4 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 11, 2026

Filed

May 25, 2026

To disclose

6 weeks

Affected · nationwide

25,5281 in this filing

Linked

5 filings

Confidence

65%

Full breach record for Metropolitan Marine Maintenance Contractors' Association, Inc. →

Metropolitan Marine Maintenance Contractors' Association (MMMCA) reported an external system breach (hacking) occurring on March 31, 2026, discovered on April 11, 2026. The incident affected 25,528 individuals, including 1 Maine resident. The breach involved the acquisition of names and other personal identifiers. MMMCA provided written notification to affected individuals on May 22, 2026, and offered 12 months of identity theft protection services through Experian IdentityWorks.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Apr 11, 2026 → Filed with AG May 25, 202644d ⏱ ME AG >30d6 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 11 days

discovery → filing · 6 weeks / 44 days

Mar 31, 2026

Begins

Apr 11, 2026

Discovered

May 25, 2026

Filed

vs. sector median

12 wks faster

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Vermont State AGbd_5c0b93e753c3de202026-05-26 · +1dVerified
Indiana State AGbd_42594df9051817a62026-05-22 · +3dVerified
New Hampshire State AGbd_de025790cd75f18c2026-06-17 · +23dVerified
Vermont State AGbd_5a911fe14272f2782026-06-18 · +24dVerified

Name: Metropolitan Marine Maintenance Contractors' Association, Inc.
norm: metropolitan marine maintenance contractors
Domain: mmmca.org

Name: Metropolitan Marine Maintenance Contractors' Association, Inc.
norm: metropolitan marine maintenance contractors
Domain: mmmca.org
Industry: Professional Servicesllm

Discovered: Apr 11, 2026
Breach occurred: Mar 31, 2026
Undetected for: 11 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 22, 2026
Affected individuals: 25,528state + nationwide
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Filed notification with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Offered 12-month membership of Experian’s IdentityWorksSM
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(44 days from discovery to filing)
Compliance flags: ME AG >30d · 44d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Apr 11, 2026
→ Filed with AG: May 25, 2026
44d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Apr 11, 2026 → Filed with AG: May 25, 2026	44d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 4 states

View merged incident ↗

Indiana State AGMay 22 · first

Maine State AG+3d · this page

Vermont State AG+4d

New Hampshire State AG+26d

Vermont State AG+27d

Pattern: first filing May 22 (IN), last Jun 18 (VT) — a 27-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-a1252b4f8318/235cef05-61cf-4041-bffa-58673a8f3cb4.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 25, 2026
Raw hash: 43cd871a156375cdf043312e735da48ef18da1ea8b571f7c02c55e9ba5c7fe79

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityMetropolitan Marine Maintenance Contractors' Association, Inc.

Victim entityMetropolitan Marine Maintenance Contractors' Association, Inc.

Incidentdiscovered Apr 11, 2026

Stated responseOffered 12-month membership of Experian’s IdentityWorksSM

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov