HackingProfessional ServicesProfessional ServicesStolen CredentialsCapture Stored DataTargetedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Michael J. Duranceau, CPA, LLC.

bd_2ecbeac38e49eb0e · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 11, 2018

Filed

Jun 1, 2018

To disclose

21 days

Affected

730

Confidence

65%

Full breach record for Michael J. Duranceau, CPA, LLC. →

Michael J. Duranceau, CPA, LLC notified NH AG of unauthorized access to computer systems between April 2-19, 2018, discovered May 11, 2018. Attacker accessed client tax documents containing PII, SSNs, and financial data. 730 individuals affected (3 in NH). No evidence of exfiltration found. FBI/IRS notified. Credit monitoring offered.

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Incident timeline

undetected · 39 days

discovery → filing · 21 days

Apr 2, 2018

Begins

May 11, 2018

Discovered

Jun 1, 2018

Filed

vs. sector median

11 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed730 affectedView incident

Name: Freeman, Mathis & Gary, LLP
norm: freeman mathis gary

Name: Michael J. Duranceau, CPA, LLC.
norm: michael j duranceau cpa
Industry: Professional Servicesllm

Discovered: May 11, 2018
Breach occurred: Apr 2, 2018 – Apr 19, 2018
Undetected for: 39 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 25, 2018
Affected individuals: 730state + nationwide
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: Notified the FBI and the IRS

During the incident: Notified law enforcement
Changed the login credentials of its authorized users
Retained a forensics firm to investigate the breach
Offering all affected individuals 12 months of myTrueldentity credit monitoring and identity theft restoration services
Changes made: Reviewing policies and procedures to identify any other ways in which we can further strengthen the confidentiality and security of its clients' information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 days(21 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/michael-duranceau-20180601.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 1, 2018
Raw hash: 78c27dca7034692fe51c5d3bb7b8df4d5e52c90eb69c058ee7dfcc811b731fd8

Reporting entityFreeman, Mathis & Gary, LLP

Victim entityMichael J. Duranceau, CPA, LLC.

Incidentdiscovered May 11, 2018

Stated responseNotified law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov