Social EngineeringProfessional ServicesProfessional ServicesPhishingCustomer Data InvolvedGovernment IDIdentity (basic)MediumContained

Carlson Building Maintenance

bd_edd4fb3e39929fb2 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Oct 7, 2024

Filed

Feb 26, 2025

To disclose

—

Affected

173state residents only

Linked

5 filings

Confidence

66%

Full breach record for Carlson Building Maintenance →4 incidents on file

Carlson Building Maintenance, Inc. reported unauthorized access to an internal email account in Nebraska between September 30 and October 7, 2024. The incident involved phishing leading to access of names, SSNs, and driver's license numbers for 173 Nebraska residents. Notifications were sent on February 26, 2025, offering one year of credit monitoring.

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Incident timeline

undetected · 7 days

Sep 30, 2024

Begins

Oct 7, 2024

Discovered

Feb 26, 2025

Filed

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

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteakirabd_61f0e01a67c879002025-10-10 · +226dVerified by operator

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_57fd77dc69ef5e2c2025-02-26Verified by operator
Iowa State AGbd_78b1fe1d363284d52026-04-03 · +401dCandidate
Indiana State AGbd_fc8191c8d7334d462026-04-03 · +401dVerified

Name: Carlson Building Maintenance
norm: carlson building maintenance
Domain: carlsonbuildin.com

Name: Carlson Building Maintenance
norm: carlson building maintenance
Domain: carlsonbuildin.com
Industry: Professional Servicesllm

Discovered: Oct 7, 2024
Breach occurred: Sep 30, 2024 – Oct 7, 2024
Undetected for: 7 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 26, 2025
Affected individuals: 173state-resident count only
Data types: Government IDIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Initial access: phishing_link

During the incident: Took measures to secure its email environment
Launched an investigation
Began reviewing the emails and attachments in the account
Offered the notice recipients one year of complimentary credit monitoring, fraud consultation, and identity theft restoration services through Equifax
Established a toll-free call center to answer any questions notified individuals may have
Changes made: Taken steps to enhance its existing security protocols
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 3 states

View merged incident ↗

Indiana State AGFeb 26 · first

Nebraska State AGFeb 26 · first · this page

Iowa State AG+401d

Indiana State AG+401d

Pattern: first filing Feb 26 (IN), last Apr 3 (IN) — a 401-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://nebraska.gov/ago/data-breach/documents/Carlson - Nebraska Attachment.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 26, 2025
Raw hash: f4101766091cb1b0a865ec9d3d007d406eb92c6bfed216b36c303d752b977f75

Linked disclosures

Ransomware claims (1)

Regulatory filings (3) · sorted by filing gap

Reporting entityCarlson Building Maintenance

Victim entityCarlson Building Maintenance

Incidentdiscovered Oct 7, 2024

Stated responseTook measures to secure its email environment

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov