HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedPIIPHIIdentity (basic)Government IDFinancial accountMediumContained

Cohen Cleary, P.C.

bd_726c044d7725a3a7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 30, 2022

Filed

Dec 2, 2022

To disclose

9 weeks

Affected

80state residents only

Linked

4 filings

Confidence

66%

Full breach record for Cohen Cleary, P.C. →

Cohen Cleary, P.C. notified the New Hampshire Attorney General of a cybersecurity incident affecting approximately 80 NH residents. Unauthorized access occurred on or about January 17, 2022. Cohen Cleary discovered the incident on September 30, 2022, following a forensic investigation. Affected data included names, SSNs, DOB, government IDs, financial account numbers, and PHI. Notifications to residents began November 23, 2022, offering credit monitoring.

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Incident timeline

undetected · 256 days

discovery → filing · 9 weeks / 63 days

Jan 17, 2022

Begins

Sep 30, 2022

Discovered

Dec 2, 2022

Filed

vs. sector median

11 wks faster

This filing is one of 4 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_47d32da5015453b32022-11-30 · +2dVerified
Maine State AGbd_df963098b4a0f2532022-11-24 · +8dCandidate
Indiana State AGbd_0d974f4b33e882dc2022-11-23 · +9dVerified

Name: MCDONALD HOPKINS LLC
norm: mcdonald hopkins

Name: Cohen Cleary, P.C.
norm: cohen cleary
Industry: Professional Servicesllm

Discovered: Sep 30, 2022
Breach occurred: Jan 17, 2022
Undetected for: 256 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 23, 2022
Affected individuals: 80state-resident count only
Data types: PIIPHIIdentity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Notified New Hampshire Office of the Attorney General Consumer Protection Bureau
Initial access: exploit_public_facing

During the incident: Commenced an immediate and thorough investigation
Alerted law enforcement
Engaged leading cybersecurity experts
Offering the affected residents whose Social Security numbers were impacted complimentary two-year memberships with a credit monitoring service
Advising the affected residents about the process for placing fraud alerts and/or security freezes on their credit files
Changes made: Continually evaluates and modifies its practices and internal controls to enhance the security and privacy of personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(63 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGNov 23 · first

Maine State AG+1d

Massachusetts State AG+7d

New Hampshire State AG+9d · this page

Pattern: first filing Nov 23 (IN), last Dec 2 (NH) — a 9-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/cohen-cleary-20221202.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 2, 2022
Raw hash: 9b666ff4e4790e3abe9647c3aff8b1e7746dc501a924fc4e4ff9bc4cc74aee80

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMCDONALD HOPKINS LLC

Victim entityCohen Cleary, P.C.

Incidentdiscovered Sep 30, 2022

Stated responseCommenced an immediate and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov