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Drost Kivlahan McMahon & O'Connor LLC

bd_13a9d7461e7394a2 · schema v1 · pii pii-v2

Severity

Low

Discovered

Dec 30, 2023

Filed

Aug 1, 2024

To disclose

—

Affected

Withheld by the regulator

Linked

8 filings

Confidence

95%
Full breach record for Drost Kivlahan McMahon & O'Connor LLC →

DROST KIVLAHAN MCMAHON & O'CONNOR filed a data-breach notice with the Illinois Attorney General in August 2024 (case 24-08-059). The register records the breach as discovered on December 30, 2023. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.

Leak gap clock⏱ Leak >90d
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

Dec 30, 2023

Discovered

Aug 1, 2024

Filed

This filing is one of 8 about the same incident.View merged incident
A leak claim by bianlian about this victim predates this filing by 173 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Regulatory filings (6) · sorted by filing gap

Show 2 more filings ↓up to 28d gap

Filing propagation · 7 filings · 7 states

View merged incident ↗
Illinois State AGAug 1 · first · this page
Maine State AG+28d
Montana State AG+28d
Massachusetts State AG+28d
New Hampshire State AG+28d
Vermont State AG+28d
Indiana State AG+28d

Pattern: first filing Aug 1 (IL), last Aug 29 (IN) — a 28-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.