HackingProfessional ServicesProfessional ServicesStolen CredentialsCapture Stored DataSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

M. Arthur Gensler Jr. & Associates, Inc.

bd_e71a88311b2e2220 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 31, 2023

Filed

Jul 25, 2023

To disclose

8 weeks

Affected

2state residents only

Linked

6 filings

Confidence

65%

Full breach record for M. Arthur Gensler Jr. & Associates, Inc. →

M. Arthur Gensler, Jr. & Associates, Inc. reported a security incident involving its third-party vendor, Progress MOVEit. An unauthorized party accessed the platform on May 15, 2023, and copied files between May 27 and May 31, 2023. The incident affected personal information of two New Hampshire residents. Gensler disabled access, patched the exploit, engaged forensic investigators, and notified law enforcement. Affected individuals were offered credit monitoring services.

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Incident timeline

undetected · 16 days

discovery → filing · 8 weeks / 55 days

May 15, 2023

Begins

May 31, 2023

Discovered

Jun 23, 2023

Scope determined

Jul 25, 2023

Filed

vs. sector median

11 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

California State AGbd_2d48359ec90220722023-08-09 · +15dCandidate
Massachusetts State AGbd_52db0b6ecd09f1572023-08-09 · +15dVerified
Indiana State AGbd_b9b8df7423eb405e2023-08-09 · +15dVerified
Vermont State AGbd_904ab57c2f95240f2023-07-07 · +18dVerified

Show 1 more filing ↓up to 23d gap

Maine State AGbd_f7fd0d0d98414d292023-08-17 · +23dVerified by operator

Name: M. Arthur Gensler Jr. & Associates, Inc.
norm: m arthur gensler jr associates

Name: M. Arthur Gensler Jr. & Associates, Inc.
norm: m arthur gensler jr associates
Industry: Professional Servicesllm

Discovered: May 31, 2023
Breach occurred: May 15, 2023 – May 31, 2023
Undetected for: 16 daysoccurrence → discovery
Materiality determined: Jun 23, 2023
Notification sent: Aug 9, 2023
Affected individuals: 2state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Attorney General John Formella
Initial access: supply_chain

During the incident: Disabled web access to the SFTP environment
Patched the exploit
Ensured systems were secure
Engaged outside cybersecurity firms to conduct an investigation
Conducted a thorough review of the files involved
Provided a preliminary notice to the involved employees via email
Mailed notification letters to the involved New Hampshire residents
Offered the New Hampshire residents a complimentary membership to credit monitoring and identity theft protection services through Experian
Notified law enforcement
Established a dedicated call center for notification recipients
Changes made: Disabled web access to the FTP environment
Patched the exploit
Secured Gensler systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(55 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Vermont State AGJul 7 · first

New Hampshire State AG+18d · this page

California State AG+33d

Massachusetts State AG+33d

Indiana State AG+33d

Maine State AG+41d

Pattern: first filing Jul 7 (VT), last Aug 17 (ME) — a 41-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://mm.nh.gov/files/uploads/doj/remote-docs/m-arthur-gensler-jr-associates-20230724.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 25, 2023
Raw hash: 3a9de88b0373f9cb67c19bf19dc8eb20a1d5f4d41a704f81372d081d9b76dca7

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityM. Arthur Gensler Jr. & Associates, Inc.

Victim entityM. Arthur Gensler Jr. & Associates, Inc.

Incidentdiscovered May 31, 2023

Stated responseDisabled web access to the SFTP environment

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov