Social EngineeringProfessional ServicesProfessional ServicesPhishingStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)LowContained

Lagerlof, LLP

bd_bb904ca3b5824e75 · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 15, 2024

Filed

Aug 13, 2024

To disclose

22 weeks

Affected

1state residents only

Linked

2 filings

Confidence

65%

Full breach record for Lagerlof, LLP →

Lagerlof, LLP notified Montana residents of a data security incident involving unauthorized access to an employee email account. The unauthorized access occurred between January 29 and March 18, 2024. The firm discovered suspicious activity on March 15, 2024, and determined personal information was impacted on July 30, 2024. Affected data included names and other personal details. The firm engaged cybersecurity experts and offered 12 months of identity protection services.

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Incident timeline

undetected · 46 days

discovery → filing · 22 weeks / 151 days

Jan 29, 2024

Begins

Mar 15, 2024

Discovered

Aug 13, 2024

Filed

vs. sector median

+3 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

Massachusetts State AGbd_2bacced0103339432024-08-13Verified

Name: Lagerlof, LLP
norm: lagerlof

Name: Lagerlof, LLP
norm: lagerlof
Industry: Professional Servicesllm

Discovered: Mar 15, 2024
Breach occurred: Jan 29, 2024 – Mar 18, 2024
Undetected for: 46 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 13, 2024
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: phishing_link

During the incident: Took immediate steps to secure its email environment
Launched an investigation
Engaged independent cybersecurity experts to conduct an investigation
Offering you 12 months of complimentary identity protection services through Experian
Changes made: Implementing additional technical security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 22 weeks(151 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 ↗

Massachusetts State AGAug 13 · first

Montana State AGAug 13 · 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/OCP/Consumer-notification-letter-1587.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 13, 2024
Raw hash: 22ff711b40e86b0da62ff9aa4d16ead7fb99fe2025d9bfeabcabd6bfc3c21271

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityLagerlof, LLP

Victim entityLagerlof, LLP

Incidentdiscovered Mar 15, 2024

Stated responseTook immediate steps to secure its email environment

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov