MalwareOtherRansomwarePlayData EncryptedDelayed DiscoveryIdentity (basic)Government IDMediumContained

Elmhurst Development LLC

bd_1d1ccd1b2c8c5487 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 8, 2024

Filed

Sep 5, 2024

To disclose

8 weeks

Affected · nationwide

4413 in this filing

Linked

5 filings

Confidence

67%

Full breach record for Elmhurst Development LLC →

Elmhurst Development LLC reported a ransomware incident (Play) occurring on May 15, 2024. The breach affected 441 individuals, including 3 Maine residents. Personal information exposed included names and Social Security numbers. Discovery was delayed until July 8, 2024, due to encryption. Notices were sent on September 5, 2024, offering 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Jul 8, 2024 → Filed with AG Sep 5, 202459d ⏱ ME AG >30d8 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 · 54 days

discovery → filing · 8 weeks / 59 days

May 15, 2024

Begins

Jul 8, 2024

Discovered

Sep 5, 2024

Filed

vs. sector median

on median

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_16cb2f682a7c601e2024-09-05Verified
New Hampshire State AGbd_5188c5fc5fadaa112024-09-05Verified
Indiana State AGbd_5decf10630b477392024-09-05Verified
Massachusetts State AGbd_be65f67ae559b2962024-09-06 · +1dVerified

Name: Buchanan Ingersoll & Rooney PC
norm: buchanan ingersoll rooney

Name: Elmhurst Development LLC
norm: elmhurst development
Industry: Otherllm

Discovered: Jul 8, 2024
Breach occurred: May 15, 2024
Undetected for: 54 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 5, 2024
Affected individuals: 441state + nationwide
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified Maine Attorney GeneralNotified U.S. federal law enforcement, including the Federal Bureau of Investigation (“FBI”)

During the incident: Took protective actions to stop any unauthorized access
Notified U.S. federal law enforcement
Launched an investigation with the assistance of leading cybersecurity specialists
Notified law enforcement, including the Federal Bureau of Investigation (“FBI”)
Independently moved quickly to investigate, assess the security of its network and systems, and identify potentially affected individuals
Installed monitoring devices to detect any suspicious activity
Changes made: Working to implement additional safeguards
Providing the potentially affected individuals two (2) years of complimentary credit protection and monitoring services through HaystackID at no cost to the individuals
Deploying the level of robust security protocols, continuous monitoring, and staff training needed to prevent and defend against sophisticated cybersecurity threats
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(59 days from discovery to filing)
Compliance flags: ME AG >30d · 59d
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: Jul 8, 2024
→ Filed with AG: Sep 5, 2024
59d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jul 8, 2024 → Filed with AG: Sep 5, 2024	59d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Vermont State AGSep 5 · first

New Hampshire State AGSep 5 · first

Indiana State AGSep 5 · first

Maine State AGSep 5 · first · this page

Massachusetts State AG+1d

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/b7a94b41-7585-418a-a29e-4b7a28273740.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 5, 2024
Raw hash: 2843d64e735f4270879ba353c17e00640f6af375ae58071ecf53620434ed63a2

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityBuchanan Ingersoll & Rooney PC

Victim entityElmhurst Development LLC

Incidentdiscovered Jul 8, 2024

Stated responseTook protective actions to stop any unauthorized access

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov