Social EngineeringProfessional ServicesProfessional ServicesPhishingStolen CredentialsTargetedPIIIdentity (basic)LowContained

The Silbernagel Group, Inc.

bd_e63e7327183a44ad · schema v1 · pii pii-v1

Severity

Low

Discovered

Jul 23, 2024

Filed

Dec 31, 2024

To disclose

23 weeks

Affected

5state residents only

Linked

2 filings

Confidence

65%

Full breach record for The Silbernagel Group, Inc. →

The Silbernagel Group, Inc. notified affected individuals on Dec 31, 2024, of a data incident detected on July 23, 2024. An unauthorized actor accessed one email account from July 22-23, 2024, potentially exposing names and other personal information. The company reset passwords, engaged forensic professionals, and implemented enhanced email security and staff training.

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Incident timeline

undetected · 1 days

discovery → filing · 23 weeks / 161 days

Jul 22, 2024

Begins

Jul 23, 2024

Discovered

Dec 31, 2024

Filed

vs. sector median

+5 wks slower

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Indiana State AGbd_445ca14e7233129d2024-12-31Verified

Name: The Silbernagel Group, Inc.
norm: the silbernagel

Name: The Silbernagel Group, Inc.
norm: the silbernagel
Industry: Professional Servicesllm

Discovered: Jul 23, 2024
Breach occurred: Jul 22, 2024 – Jul 23, 2024
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Dec 31, 2024
Affected individuals: 5state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: reporting this Incident to relevant government agencies
Initial access: phishing_link

During the incident: Changing passwords
Implementing additional technical safeguards
Engaging data security and privacy professionals to assist in our investigation and response
Implementing additional monitoring services for our email environment
Adding verification practices
Administering staff-wide cybersecurity trainings
Reporting this Incident to relevant government agencies
Changes made: Implementing additional monitoring services for our email environment
Adding verification practices
Administering staff-wide cybersecurity trainings
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 weeks(161 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Indiana State AGDec 31 · first

Montana State AGDec 31 · 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://dojmt.gov/wp-content/uploads/2025/03/Consumer-notification-letter-138.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 31, 2024
Raw hash: 26df76365fac1fcd4b9439388879a594300e82e19804a896ead8867ebd819dbc

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityThe Silbernagel Group, Inc.

Victim entityThe Silbernagel Group, Inc.

Incidentdiscovered Jul 23, 2024

Stated responseChanging passwords

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov