HackingOtherTargetedIdentity (basic)Government IDMediumContained

Phoenix Art Museum

bd_ec3fa204c92e6f6e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 8, 2025

Filed

Apr 15, 2026

To disclose

18 weeks

Affected

2state residents only

Linked

6 filings

Confidence

65%

Full breach record for Phoenix Art Museum →

Phoenix Art Museum reported an external system breach (hacking) on Dec 3, 2025, discovered Dec 8, 2025. Unauthorized access resulted in the exposure of names and Social Security numbers for 2 Maine residents. Notifications were mailed on April 15, 2026, offering one year of credit monitoring and identity protection services.

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Maine clockDiscovered Dec 8, 2025 → Filed with AG Apr 15, 2026128d ✗ ME AG >90d18 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 5 days

discovery → filing · 18 weeks / 128 days

Dec 3, 2025

Begins

Dec 8, 2025

Discovered

Apr 15, 2026

Filed

vs. sector median

+10 wks slower

This filing is one of 6 about the same incident.View merged incident

A leak claim by rhysida about this victim predates this filing by 128 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siterhysidabd_c6a5e44c7e4012fb2026-02-12 · +61dVerified by operator
Leak Siterhysidabd_765688756f67df5c2025-12-08 · +128dVerified by operator

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_6923d15440e132e82026-04-15Candidate
Massachusetts State AGbd_8f6a417b581393b42026-04-15Verified
Nebraska State AGbd_98396ff1b781d70c2026-04-15Verified

Name: Phoenix Art Museum
norm: phoenix art museum
Domain: phxart.org

Name: Phoenix Art Museum
norm: phoenix art museum
Domain: phxart.org
Industry: Otherllm

Discovered: Dec 8, 2025
Breach occurred: Dec 3, 2025
Undetected for: 5 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 15, 2026
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Initial access: exploit_public_facing

During the incident: Took steps to secure the network
Launched an investigation
Reviewed the files that were accessed
Began mailing notification letters via First-Class mail
Offering a complimentary, one-year membership to credit monitoring and identity protection services
Changes made: Taken steps to enhance already existing security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 weeks(128 days from discovery to filing)
Compliance flags: ME AG >90d · 128dLeak >90d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Dec 8, 2025
→ Filed with AG: Apr 15, 2026
128d 90 days ME AG >90d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 8, 2025 → Filed with AG: Apr 15, 2026	128d	90 days	ME AG >90d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGApr 15 · first

Massachusetts State AGApr 15 · first

Nebraska State AGApr 15 · first

Maine State AGApr 15 · first · this page

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-a1252b4f8318/31b603d4-f520-4425-8191-9dfebbf47b16.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 15, 2026
Raw hash: 8ae7bc3abe5e870622c90cbb21aeff051abd0c660f103686b9b8d0f5f6fd2e61

Linked disclosures

Ransomware claims (2)

Regulatory filings (3) · sorted by filing gap

Reporting entityPhoenix Art Museum

Victim entityPhoenix Art Museum

Incidentdiscovered Dec 8, 2025

Stated responseTook steps to secure the network

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov