HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDMediumContained

Klatzkin & Company LLP

bd_3db260923aef7b75 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 5, 2022

Filed

Oct 24, 2022

To disclose

25 weeks

Affected

3state residents only

Linked

4 filings

Confidence

66%

Full breach record for Klatzkin & Company LLP →

Klatzkin & Company LLP notified the NH AG of a data event affecting 3 NH residents. Unauthorized access occurred starting March 1, 2022, discovered May 5, 2022. Names, addresses, and SSNs were potentially accessed. Klatzkin engaged forensic specialists, provided 12 months of credit monitoring, and notified affected individuals on Oct 20, 2022.

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Incident timeline

undetected · 65 days

discovery → filing · 25 weeks / 172 days

Mar 1, 2022

Begins

May 5, 2022

Discovered

Oct 24, 2022

Filed

vs. sector median

+6 wks slower

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

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_3c4c3287925209ec2022-10-20 · +4dVerified
Maine State AGbd_898a119f33b72f432022-10-20 · +4dCandidate
Massachusetts State AGbd_c3e1ae7eef96d8e32022-10-20 · +4dVerified

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Klatzkin & Company LLP
norm: klatzkin
Industry: Professional Servicesllm

Discovered: May 5, 2022
Breach occurred: Mar 1, 2022
Undetected for: 65 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 20, 2022
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Provided notice to New Hampshire Attorney General Consumer Protection Bureau
Initial access: valid_credentials

During the incident: Launched an investigation, with the assistance of third-party cybersecurity specialists
Conducted a thorough and in-depth review of the information within those systems
Providing access to credit monitoring services for twelve (12) months, through IDX
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing written notice of this incident to relevant state regulators
Providing written notice... to the three major credit reporting agencies
Changes made: Working to implement additional safeguards and training to its employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(172 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 AGOct 20 · first

Maine State AGOct 20 · first

Massachusetts State AGOct 20 · first

New Hampshire State AG+4d · this page

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/klatzkin-company-20221024.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 24, 2022
Raw hash: 990b193236300d44792fe802422b23a687b0a811714289d4b70880d35ad04d2b

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityKlatzkin & Company LLP

Incidentdiscovered May 5, 2022

Stated responseLaunched an investigation, with the assistance of third-party cybersecurity specialists

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov