HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedData ExfiltratedIdentity (basic)Government IDFinancial accountMediumContained

Howard J. Mann, C.P.A., A.C.

bd_e24495cf870fb9a9 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 27, 2026

Filed

Jun 30, 2026

To disclose

9 weeks

Affected

1state residents only

Confidence

66%

Full breach record for Howard J. Mann, C.P.A., A.C. →

Howard J. Mann, C.P.A., A.C. (HJM CPA) notified the New Hampshire Attorney General of a data breach discovered on April 27, 2026. Unauthorized access occurred between April 1 and April 15, 2026, exposing client names, addresses, Social Security numbers, and bank account information. One New Hampshire resident was identified. HJM CPA secured systems, changed credentials, engaged IT vendors, and notified law enforcement and the IRS.

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Incident timeline

undetected · 26 days

discovery → filing · 9 weeks / 64 days

Apr 1, 2026

Begins

Apr 27, 2026

Discovered

Jun 30, 2026

Filed

vs. sector median

10 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: Bowles Rice LLP
norm: bowles rice
Domain: bowlesrice.com

Name: Howard J. Mann, C.P.A., A.C.
norm: howard j mann cpa ac
Industry: Professional Servicesllm

Discovered: Apr 27, 2026
Breach occurred: Apr 1, 2026 – Apr 15, 2026
Undetected for: 26 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: Identity (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 the Attorney General of New HampshireReported the incident to the IRS
Initial access: exploit_public_facing

During the incident: Secured the computer systems impacted by the incident
Changed and enhanced the credentials used to access its computer systems
Investigated how the unauthorized actor obtained access to its computer systems
Adopted new hardware/software safeguards to protect HJM CPA’s network and computer systems
Sent customers whose personal information may have been accessed by the unauthorized actor a copy of the written notice
Reported the incident to law enforcement and the IRS
Changes made: Changed computer systems and information security policies and procedures to prevent future unauthorized access
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(64 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/howard-j-mann-cpa-20260630.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 30, 2026
Raw hash: a9a6a3eb5ea85b27c43effc9d53aa017afab2e1cc6e047e92c7b0bed7c7fe10b

Reporting entityBowles Rice LLP

Victim entityHoward J. Mann, C.P.A., A.C.

Incidentdiscovered Apr 27, 2026

Stated responseSecured the computer systems impacted by the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov