HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedEmployee Data InvolvedPIIIdentity (basic)Government IDMediumContained

MBE CPAs

bd_a22a32d5848a8d41 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 18, 2024

Filed

May 19, 2025

To disclose

13 months

Affected

2state residents only

Linked

7 filings

Confidence

66%

Full breach record for MBE CPAs →2 incidents on file

MBE CPAs, LLP notified the NH AG of a data incident discovered on April 18, 2024, involving unauthorized access to its network. The breach impacted 2 New Hampshire residents, exposing PII including government IDs. MBE engaged forensic investigators, enhanced security controls (MFA, patching, monitoring), and offered credit monitoring.

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Incident timeline

discovery → filing · 13 months / 396 days

Apr 18, 2024

Discovered

May 19, 2025

Filed

vs. sector median

+38 wks slower

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Nebraska State AGbd_2ba5a68ad1b6896c2025-05-13 · +6dVerified
Massachusetts State AGbd_6f7b298888802b3b2025-05-13 · +6dVerified
Montana State AGbd_cda94f21ce7d38d52025-05-13 · +6dCandidate
Nebraska State AGbd_2b4e0c5dd8dc981d2025-05-28 · +9dVerified

Show 2 more filings ↓up to 21d gap

New Hampshire State AGbd_0854a7d7c693b5192025-06-06 · +18dVerified
Maine State AGbd_d5c9e4424e2ef5592025-06-09 · +21dVerified

Name: MBE CPAs
norm: mbe cpas

Name: MBE CPAs
norm: mbe cpas
Industry: Professional Servicesllm

Discovered: Apr 18, 2024
Materiality determined: —
Notification sent: May 13, 2025
Affected individuals: 2state-resident count only
Data types: PIIIdentity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: Notified New Hampshire Attorney General

During the incident: Disconnected all access to the network
Engaged a specialized third-party cybersecurity firm to assist with securing the environment
Conducted a comprehensive forensic investigation
Engaged a third-party data mining firm to conduct a comprehensive review of the data
Mailed notice letters to affected employees
Offered complimentary credit monitoring services
Changes made: Implemented Sentinel One/Huntress with a proactive contract that includes monitoring and alerting
Implemented multifactor authentication for RMM tool and where supported
Implemented software patching
Updated password policies and requirements
Implemented audits for users, group policies, and scheduled tasks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 months(396 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 5 states

View merged incident ↗

Nebraska State AGMay 13 · first

Massachusetts State AGMay 13 · first

Montana State AGMay 13 · first

New Hampshire State AG+6d · this page

Nebraska State AG+15d

New Hampshire State AG+24d

Maine State AG+27d

Pattern: first filing May 13 (NE), last Jun 9 (ME) — a 27-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/mbe-cpas-20250519.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 19, 2025
Raw hash: 386aae50f94b5a053db2139c6c218eb30bf2d092af2bed637c7e0dc6d7a6220c

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityMBE CPAs

Victim entityMBE CPAs

Incidentdiscovered Apr 18, 2024

Stated responseDisconnected all access to the network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov