HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Stevens & Day, LLP

bd_75b919c82161c65d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 29, 2024

Filed

Aug 8, 2025

To disclose

36 weeks

Affected

29state residents only

Linked

4 filings

Confidence

66%

Full breach record for Stevens & Day, LLP →

Stevens & Day, LLP notified the New Hampshire Attorney General of a data breach affecting 29 NH residents. Unauthorized access occurred Nov 22-28, 2024; detected Nov 29, 2024. Impacted data included names, SSNs, driver's licenses, and bank account numbers. Notifications sent Aug 8, 2025. Credit monitoring offered. No misuse believed.

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Incident timeline

undetected · 7 days

discovery → filing · 36 weeks / 252 days

Nov 22, 2024

Begins

Nov 29, 2024

Discovered

Aug 8, 2025

Filed

vs. sector median

+18 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_0b2ed7130f359d432025-08-08Candidate
Massachusetts State AGbd_0dbc7880675ef2e52025-08-08Verified
Vermont State AGbd_9ae9f0be4c0209e82025-08-08Verified

Name: Stevens & Day, LLP
norm: stevens day
Domain: stevensdaylaw.com

Name: Stevens & Day, LLP
norm: stevens day
Domain: stevensdaylaw.com
Industry: Professional Servicesllm

Discovered: Nov 29, 2024
Breach occurred: Nov 22, 2024 – Nov 28, 2024
Undetected for: 7 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 8, 2025
Affected individuals: 29state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified New Hampshire Attorney General Consumer Protection Bureau
Initial access: valid_credentials

During the incident: Began an investigation with the assistance of third-party specialists
Conducted a comprehensive review of the files at issue with the assistance of third-party specialists
Offered the potentially impacted residents of New Hampshire access to 12 months of complimentary credit monitoring and identity protection services
Worked with specialists to conduct a thorough investigation and implement additional security precautions
Notified law enforcement
Reviewing its policies and procedures related to data protection
Changes made: Implement additional security precautions
Reviewing its policies and procedures related to data protection
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 36 weeks(252 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Maine State AGAug 8 · first

Massachusetts State AGAug 8 · first

Vermont State AGAug 8 · first

New Hampshire State AGAug 8 · 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/stevens-day-20250808.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 8, 2025
Raw hash: c2072b29a74bd68bcfbed1da8e61ce8ee13e764a0fd7c17886c3f354e9355836

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityStevens & Day, LLP

Victim entityStevens & Day, LLP

Incidentdiscovered Nov 29, 2024

Stated responseBegan an investigation with the assistance of third-party specialists

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov