HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedData ExfiltratedPIIIdentity (basic)LowContained

Gunster, Yoakley, & Stewart, PA

bd_e920547675f271aa · schema v1 · pii pii-v1

Severity

Low

Discovered

Nov 27, 2022

Filed

Aug 4, 2023

To disclose

36 weeks

Affected

1state residents only

Linked

5 filings

Confidence

67%

Full breach record for Gunster, Yoakley, & Stewart, PA →7 incidents on file

Gunster, Yoakley & Steward, PA notified the NH Attorney General of a security breach detected on Nov 27, 2022. Unauthorized access occurred to its document management system over several weeks prior. One NH resident's PII was compromised. Gunster contained the incident, engaged forensic firms, notified federal law enforcement, and mailed notices on Aug 4, 2023, offering Kroll credit monitoring.

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Incident timeline

discovery → filing · 36 weeks / 250 days

Nov 27, 2022

Discovered

Aug 4, 2023

Filed

vs. sector median

+17 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Montana State AGbd_87b5af26203b089e2023-08-04Candidate
California State AGbd_78b60ff13445b0ec2023-12-04 · +122dVerified
Washington State AGbd_c61ec90b1a7d4d8d2023-12-04 · +122dVerified
South Carolina State AGbd_a3b412bcc9b03adc2024-08-01 · +363dVerified

Name: Gunster, Yoakley, & Stewart, PA
norm: gunster yoakley stewart
Domain: gunster.com

Name: Gunster, Yoakley, & Stewart, PA
norm: gunster yoakley stewart
Domain: gunster.com
Industry: Professional Servicesllm

Discovered: Nov 27, 2022
Materiality determined: —
Notification sent: Aug 4, 2023
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: Notified federal law enforcement
Initial access: valid_credentials

During the incident: Took measures to contain the incident and securely restore its network
Conducted a thorough investigation with the assistance of firms
Notified federal law enforcement
Mailed a notification letter via United States Postal Service First-Class mail
Offered the resident a complimentary membership to credit monitoring and identity protection services through Kroll
Established a dedicated, toll-free call center
Changes made: Implemented additional measures to further strengthen the security of its network
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 36 weeks(250 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Montana State AGAug 4 · first

New Hampshire State AGAug 4 · first · this page

California State AG+122d

Washington State AG+122d

South Carolina State AG+363d

Pattern: first filing Aug 4 (MT), last Aug 1 (SC) — a 363-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/gunster-yoakley-steward-20230804.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 4, 2023
Raw hash: c0fcab66580736871d3e32336176dacbaf70fa66ab3cd894804a4eb749306d05

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityGunster, Yoakley, & Stewart, PA

Victim entityGunster, Yoakley, & Stewart, PA

Incidentdiscovered Nov 27, 2022

Stated responseTook measures to contain the incident and securely restore its network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov