HackingProfessional ServicesProfessional ServicesData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)MediumContained

Municipal Art Society of New York

bd_65d73f6324fabae8 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 17, 2021

Filed

Dec 31, 2021

To disclose

14 days

Affected · nationwide

7041 in this filing

Confidence

66%

Full breach record for Municipal Art Society of New York →

The Municipal Art Society of New York experienced an external system breach (hacking) on June 20, 2021, discovered on December 17, 2021. The incident compromised the names and Social Security Numbers of 704 individuals, including one Maine resident. The organization notified affected individuals in writing on December 30, 2021, and provided identity theft protection services, including credit monitoring and dark web monitoring.

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Maine clockDiscovered Dec 17, 2021 → Filed with AG Dec 31, 202114d ✓ ME AG ≤30d14 days 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 · 180 days

discovery → filing · 14 days

Jun 20, 2021

Begins

Dec 17, 2021

Discovered

Dec 31, 2021

Filed

vs. sector median

17 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed704 affectedView incident

Name: Municipal Art Society of New York
norm: municipal art society of new york

Name: Municipal Art Society of New York
norm: municipal art society of new york
Industry: Professional Servicesllm

Discovered: Dec 17, 2021
Breach occurred: Jun 20, 2021
Undetected for: 180 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 30, 2021
Affected individuals: 704state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Offered identity theft protection services
Changes made: IDX - single bureau credit monitoring
CyberScan dark web monitoring
Fully-managed identity recovery services
$1 Million in identity theft insurance coverage
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 days(14 days from discovery to filing)
Compliance flags: ME AG ≤30d · 14d
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: Dec 17, 2021
→ Filed with AG: Dec 31, 2021
14d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 17, 2021 → Filed with AG: Dec 31, 2021	14d	30 days	ME AG ≤30d

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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/ac85b728-838e-49fe-98f3-bee32ead0003.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 31, 2021
Raw hash: 49548f7b59147a2da5d6433ccf015f90a8c18cecd882b02c09dc368c6247af4f

Reporting entityMunicipal Art Society of New York

Victim entityMunicipal Art Society of New York

Incidentdiscovered Dec 17, 2021

Stated responseSent written notification to affected individuals

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov