HackingProfessional ServicesProfessional ServicesData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)MediumContained

Whittaker & Company

bd_4ec11ae8aa8ad93e · schema v1 · pii pii-v2

Severity

Medium

Discovered

May 29, 2025

Filed

Jun 27, 2025

To disclose

—

Affected

1state residents only

Linked

6 filings

Confidence

66%

Full breach record for Whittaker & Company →

Whittaker & Company reported unauthorized access to its network between Feb 28 and Mar 13, 2025. The actor exfiltrated documents containing a Nebraska resident's name and SSN. The company discovered the breach on May 29, 2025, and mailed notification on June 27, 2025, offering one year of credit monitoring.

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Leak gap clock⏱ Leak >90d

Incident timeline

undetected · 90 days

Feb 28, 2025

Begins

May 29, 2025

Discovered

Jun 27, 2025

Filed

This filing is one of 6 about the same incident.View merged incident

A leak claim by spacebears about this victim predates this filing by 117 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitespacebearsbd_bec671c9d907facc2025-03-02 · +117dVerified by operator

Regulatory filings (4) · sorted by filing gap

California State AGbd_3bc52a4b6e7cdd1e2025-06-27Verified
Maine State AGbd_84ce7e644f616e3e2025-06-27Verified by operator
Massachusetts State AGbd_879a12df618c586c2025-06-27Verified
Indiana State AGbd_9933baea0a9a9f662025-06-27Verified

Name: Whittaker & Company
norm: whittaker
Domain: whittakercpas.com

Name: Whittaker & Company
norm: whittaker
Domain: whittakercpas.com
Industry: Professional Servicesllm

Discovered: May 29, 2025
Breach occurred: Feb 28, 2025 – Mar 13, 2025
Undetected for: 90 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 27, 2025
Affected individuals: 1state-resident count only
Data types: Government IDIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1119 Automated Collection
Threat actor: External
Initial access: exploit_public_facing

During the incident: Took measures to secure its systems
Launched an investigation with the help of a cybersecurity firm
Reported the incident to law enforcement
Changes made: Implemented additional measures to enhance the security of its systems
Source: Quoted from the filing itself, not independently verified.

Compliance flags: Leak >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

California State AGJun 27 · first

Maine State AGJun 27 · first

Massachusetts State AGJun 27 · first

Indiana State AGJun 27 · first

Nebraska State AGJun 27 · 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://nebraska.gov/ago/data-breach/documents/0b395e90-352e-4f26-ab2c-c1a92dad58e4.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 27, 2025
Raw hash: 86667ddfd1bac5de39bca94185c2004b3e7196730e1373a9fbc3797c0fb23ac7

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityWhittaker & Company

Victim entityWhittaker & Company

Incidentdiscovered May 29, 2025

Stated responseTook measures to secure its systems

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancenebraska.gov