HackingProfessional ServicesProfessional ServicesStolen CredentialsBECSupply Chain (3P Vendor)Data ExfiltratedRansom DemandedIdentity (basic)Government IDFinancial accountMediumContained

Guilmartin, DiPiro & Sokolowski, LLC

bd_586ce475547ab993 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 17, 2016

Filed

Dec 2, 2016

To disclose

7 weeks

Affected

14state residents only

Linked

2 filings

Confidence

66%

Full breach record for Guilmartin, DiPiro & Sokolowski, LLC →

Guilmartin, DiPiro & Sokolowski, LLC (GDS), an accounting firm, experienced a data breach after a tax-preparation software partner alerted GDS to a fraudulent tax return filed using GDS' account info. GDS discovered the incident on Oct 17, 2016. Forensics confirmed unauthorized access to a server and exfiltration of PII (names, SSNs, addresses, wage info, bank account info) for 14 NH residents. Notifications were mailed Dec 1-6, 2016. GDS engaged forensic investigators, a cybersecurity firm for risk assessment, and offered 24 months of credit monitoring via Kroll. FBI and IRS were notified.

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Incident timeline

discovery → filing · 7 weeks / 46 days

Oct 17, 2016

Discovered

Dec 2, 2016

Filed

vs. sector median

12 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Montana State AGbd_b0f0b9e2ff6f6e762016-12-02Candidate

Name: THOMPSON COBURN LLP
norm: thompson coburn
Domain: thompsoncoburn.com

Name: Guilmartin, DiPiro & Sokolowski, LLC
norm: guilmartin dipiro sokolowski
Industry: Professional Servicesllm

Discovered: Oct 17, 2016
Materiality determined: —
Notification sent: Dec 1, 2016
Affected individuals: 14state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Informed the FBI and IRS of its investigationProvided notice to the credit reporting agencies
Initial access: supply_chain

During the incident: Hired a third-party computer forensic firm to analyze GDS' computer servers
Hired a cybersecurity technology company to perform a complete risk assessment of its network and systems
Working with the technology company to further enhance the security of GDS' systems
Informed the FBI and IRS of its investigation
Offering potentially impacted individuals 24 months of credit monitoring and identity restoration services through Kroll
Provided notice to the credit reporting agencies
Changes made: Hired a cybersecurity technology company to perform a complete risk assessment of its network and systems
Working with the technology company to further enhance the security of its systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(46 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Montana State AGDec 2 · first

New Hampshire State AGDec 2 · 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://mm.nh.gov/files/uploads/doj/remote-docs/guilmartin-dipiro-sokolowski-20161202.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 2, 2016
Raw hash: de64dba91a03ef62aa542987b2c80884206e72b21ee15c817092a19ca01a542c

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityTHOMPSON COBURN LLP

Victim entityGuilmartin, DiPiro & Sokolowski, LLC

Incidentdiscovered Oct 17, 2016

Stated responseHired a third-party computer forensic firm to analyze GDS' computer servers

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov