HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)MediumContained

Katz Nannis + Solomon PC

bd_ef65328ce423e0db · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 28, 2023

Filed

Sep 3, 2024

To disclose

40 weeks

Affected

1,200state residents only

Linked

6 filings

Confidence

65%

Full breach record for Katz Nannis + Solomon PC →

Katz Nannis + Solomon, PC notified the NH Attorney General of a data security incident. Unauthorized access occurred Nov 21-27, 2023. The firm detected unusual activity on Nov 28, 2023. Personal information of 1,200 NH residents was compromised. The firm engaged forensic experts, reported to the FBI, and offered credit monitoring services.

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Incident timeline

undetected · 7 days

discovery → filing · 40 weeks / 280 days

Nov 21, 2023

Begins

Nov 28, 2023

Discovered

Aug 22, 2024

Scope determined

Sep 3, 2024

Filed

vs. sector median

+21 wks slower

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

Indiana State AGbd_1689385cfde646b42024-09-03Verified
California State AGbd_6c163408a24aeb8c2024-09-03Verified
Montana State AGbd_e6afde2e870ca1702024-09-03Candidate
Massachusetts State AGbd_cfea763977cef6992024-09-04 · +1dVerified

Show 1 more filing ↓up to 2d gap

Illinois State AGbd_1afbbb93237d663f2024-09-01 · +2dVerified

Name: Katz Nannis + Solomon PC
norm: katz nannis solomon

Name: Katz Nannis + Solomon PC
norm: katz nannis solomon
Industry: Professional Servicesllm

Discovered: Nov 28, 2023
Breach occurred: Nov 21, 2023 – Nov 27, 2023
Undetected for: 7 daysoccurrence → discovery
Materiality determined: Aug 22, 2024
Notification sent: Sep 3, 2024
Affected individuals: 1,200state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney GeneralReported the incident to the FBI
Initial access: valid_credentials

During the incident: Retained cybersecurity experts and launched a forensics investigation
Implemented additional security measures to further harden its digital environment
Reported the incident to the FBI
Notified affected individuals
Offered complimentary credit monitoring and identity protection services through IDX
Changes made: Implemented additional security measures to further harden its digital environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 40 weeks(280 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 ↗

Illinois State AGSep 1 · first

Indiana State AG+2d

California State AG+2d

Montana State AG+2d

New Hampshire State AG+2d · this page

Massachusetts State AG+3d

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/katz-nannis-solomon-20240903.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 3, 2024
Raw hash: 6b04b566113bef13b46abe5881bf0f49357ed6fcf6f4a15ee0af261e95a9ee91

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityKatz Nannis + Solomon PC

Victim entityKatz Nannis + Solomon PC

Incidentdiscovered Nov 28, 2023

Stated responseRetained cybersecurity experts and launched a forensics investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov