HackingProfessional ServicesProfessional ServicesStolen CredentialsTargetedCustomer Data InvolvedPIIIdentity (basic)Financial accountLowContained

Hbl Cpas, P.C.

bd_c4e088f519409409 · schema v1 · pii pii-v1

Severity

Low

Discovered

Nov 30, 2023

Filed

Apr 16, 2024

To disclose

20 weeks

Affected

1state residents only

Linked

3 records

Confidence

66%

Full breach record for Hbl Cpas, P.C. →

HBL CPAs, P.C. notified Montana residents of a November 30, 2023 incident where an unknown actor accessed systems and potentially obtained personal information including names and financial account numbers. HBL engaged experts, notified the FBI and IRS, and offered credit monitoring services.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >30d20 weeks discovery → filing

Incident timeline

discovery → filing · 20 weeks / 138 days

Nov 30, 2023

Begins

Nov 30, 2023

Discovered

Apr 16, 2024

Filed

vs. sector median

on median

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

A leak claim by ransomhouse about this victim was first seen 70 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteransomhousebd_a184601fda76437e2023-11-25 · +143dVerified by operator

Regulatory filings (1) · sorted by filing gap

Maine State AGbd_62426a3b9c4b251f2024-04-16Candidate

Name: Hbl Cpas, P.C.
norm: hbl cpas
Domain: hblcpa.com

Name: Hbl Cpas, P.C.
norm: hbl cpas
Domain: hblcpa.com
Industry: Professional Servicesllm

Discovered: Nov 30, 2023
Breach occurred: Nov 30, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 16, 2024
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)Financial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified the Federal Bureau of InvestigationNotified the Internal Revenue Service
Initial access: valid_credentials

During the incident: Took steps to secure digital environment
Conducted investigation to assess full nature and scope
Worked with additional experts to conduct comprehensive review
Implemented additional security features
Notified the Federal Bureau of Investigation
Notified the Internal Revenue Service
Enrolled all clients in the eFiling opt-in program
Offered complimentary credit monitoring and identity protection services
Changes made: Implemented additional security features to reduce risk of similar incident
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 weeks(138 days from discovery to filing)
Compliance flags: Leak >30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Maine State AGApr 16 · first

Montana State AGApr 16 · first · 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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-1287.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 16, 2024
Raw hash: 3b59390d6a450bd0e7d6badec302bca632b58c61fc14f819f5015b2a73a98f09

Linked disclosures

Ransomware claims (1)

Regulatory filings (1) · sorted by filing gap

Reporting entityHbl Cpas, P.C.

Victim entityHbl Cpas, P.C.

Incidentdiscovered Nov 30, 2023

Stated responseTook steps to secure digital environment

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancedojmt.gov