HackingProfessional ServicesProfessional ServicesVulnerability ExploitStolen CredentialsTargetedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Wisner Baum LLP

bd_d08c7349ab190a95 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 15, 2025

Filed

Jan 23, 2026

To disclose

6 weeks

Affected

56state residents only

Linked

11 filings

Confidence

66%

Full breach record for Wisner Baum LLP →

Wisner Baum LLP reported an external system breach (hacking) affecting 56 Maine residents. Unauthorized access occurred Oct 8-9, 2025; discovered Dec 15, 2025. Data included names, SSNs, driver's licenses, and bank/routing numbers. Notifications sent Jan 23, 2026. Credit monitoring offered.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Dec 15, 2025 → Filed with AG Jan 23, 202639d ⏱ ME AG >30d6 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 68 days

discovery → filing · 6 weeks / 39 days

Oct 8, 2025

Begins

Dec 15, 2025

Discovered

Jan 23, 2026

Filed

vs. sector median

13 wks faster

This filing is one of 11 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Oregon State AGbd_10178ff4c457f8c32026-01-23Candidate
Washington State AGbd_37073d78a5d8020d2026-01-23Verified
Massachusetts State AGbd_414e8f031fe308ff2026-01-23Verified
California State AGbd_4f695f7cf771e9832026-01-23Verified

Show 6 more filings ↓up to 22d gap

Indiana State AGbd_60ec407520bd24882026-01-23Verified
Vermont State AGbd_65e3679b02b128fe2026-01-23Verified
Indiana State AGbd_cbc68f1752ed6e5d2026-01-23Verified
Nebraska State AGbd_ccdcb9570f81d5f92026-01-23Verified
Texas State AGbd_7e40321d8677cf662026-01-27 · +4dVerified
Illinois State AGbd_3f3b760f00242c122026-01-01 · +22dVerified

Name: Wisner Baum LLP
norm: wisner baum
Industry: professional_services

Name: Wisner Baum LLP
norm: wisner baum
Industry: professional_services
Industry: Professional Servicesllm

Discovered: Dec 15, 2025
Breach occurred: Oct 8, 2025 – Oct 9, 2025
Undetected for: 68 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 23, 2026
Affected individuals: 56state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: exploit_public_facing

During the incident: Isolated the computers from its IT network
Launched an investigation
Undertook a comprehensive search and review of the files
Established a dedicated, toll-free call center to answer questions
Offering individuals whose Social Security and/or driver’s license numbers may have been involved in the incident complimentary one-year memberships to credit monitoring services through CyberScout
Changes made: Implemented, and will continue to adopt, additional safeguards and technical security measures to further protect and monitor its systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(39 days from discovery to filing)
Compliance flags: ME AG >30d · 39d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Dec 15, 2025
→ Filed with AG: Jan 23, 2026
39d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 15, 2025 → Filed with AG: Jan 23, 2026	39d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 10 states

View merged incident ↗

Illinois State AGJan 1 · first

Oregon State AG+22d

Washington State AG+22d

Massachusetts State AG+22d

California State AG+22d

Indiana State AG+22d

Vermont State AG+22d

Indiana State AG+22d

Nebraska State AG+22d

Maine State AG+22d · this page

Texas State AG+26d

Pattern: first filing Jan 1 (IL), last Jan 27 (TX) — a 26-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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/c37cb0a9-e776-4862-9a33-20473ce33090.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 23, 2026
Raw hash: dbf5c7b9c0c41222939570b3e91c8952a19d7fabbd85f8b0cc29ff4bbb687b54

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityWisner Baum LLP

Victim entityWisner Baum LLP

Incidentdiscovered Dec 15, 2025

Stated responseIsolated the computers from its IT network

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov