Social EngineeringProfessional ServicesProfessional ServicesPhishingData ExfiltratedCustomer Data InvolvedGovernment IDFinancial accountMediumContained

MCLANE MIDDLETON, PROFESSIONAL ASSOCIATION

bd_76d92ecd500d6a06 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 17, 2020

Filed

Dec 23, 2020

To disclose

18 weeks

Affected

449state residents only

Linked

3 filings

Confidence

67%

Full breach record for MCLANE MIDDLETON, PROFESSIONAL ASSOCIATION →

McLane Middleton, Professional Association notified the NH AG of a security incident involving spoofed emails containing malware on employee desktops. While no unauthorized access to PII was confirmed, SSNs and financial account numbers were present in affected emails. 449 NH residents (employees and non-employees) were notified and offered 2 years of Experian IdentityWorks. Investigation concluded mid-August 2020; notifications sent Dec 2020.

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Incident timeline

discovery → filing · 18 weeks / 128 days

Aug 17, 2020

Discovered

Dec 23, 2020

Filed

vs. sector median

on median

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_72002b443a0c979d2020-12-15 · +8dVerified
Maine State AGbd_1087e8f4e5db79f02020-12-09 · +14dCandidate

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: MCLANE MIDDLETON, PROFESSIONAL ASSOCIATION
norm: mclane middleton professional
Industry: professional_services
Industry: Professional Servicesllm

Discovered: Aug 17, 2020
Materiality determined: —
Notification sent: Dec 9, 2020
Affected individuals: 449state-resident count only
Data types: Government IDFinancial account
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1486 Data Encrypted for Impact
Threat actor: External
Regulator citations: Notified New Hampshire Attorney General Consumer Protection Bureau
Initial access: phishing_link

During the incident: Engaged an independent forensic expert to investigate
Warned individuals whose email addresses were in the spoofed accounts
Reviewed emails in those accounts
Provided written notice to affected individuals
Offered two years of identity and credit protection through Experian IdentityWorks
Provided guidance on how to better protect against identity theft and fraud
Deployed additional, highly sophisticated, multi-layered anti-malware and activity-based threat detection software
Engaged a second outside computer forensic security firm to conduct an independent audit
Changes made: Implementing recommendations from experts to further enhance safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 weeks(128 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Maine State AGDec 9 · first

Massachusetts State AG+6d

New Hampshire State AG+14d · this page

Pattern: first filing Dec 9 (ME), last Dec 23 (NH) — a 14-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/mclane-middleton-professional-20201223.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 23, 2020
Raw hash: 242c4d7a1d8ead882ee9e0d4b23cbd6c55c3059a70afa2693d3da57c8a4e88c8

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityMCLANE MIDDLETON, PROFESSIONAL ASSOCIATION

Incidentdiscovered Aug 17, 2020

Stated responseEngaged an independent forensic expert to investigate

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov