MalwareProfessional ServicesProfessional ServicesRansomwareData EncryptedData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Kohler and Eyre, CPAs

bd_3b9463477cee36ef · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 10, 2021

Filed

Jul 22, 2022

To disclose

32 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

64%

Full breach record for Kohler and Eyre, CPAs →

Kohler and Eyre CPA, LLP suffered a ransomware attack on December 10, 2021, resulting in system encryption and backup destruction. On January 9, 2022, the firm discovered that files containing customer personal information, including names, SSNs, and credit card data, had been exfiltrated. Approximately 1% of system data contained personal identifiers. The firm engaged forensic experts, secured systems, and offered identity protection services to affected individuals.

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Incident timeline

discovery → filing · 32 weeks / 224 days

Dec 10, 2021

Begins

Dec 10, 2021

Discovered

Jul 22, 2022

Filed

vs. sector median

+13 wks slower

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Indiana State AGbd_769686fb7c8ace132022-07-22Verified
Maine State AGbd_5bc126ae144d30752022-08-29 · +38dVerified

Name: Kohler and Eyre, CPAs
norm: kohler and eyre cpas

Name: Kohler and Eyre, CPAs
norm: kohler and eyre cpas
Industry: Professional Servicesllm

Discovered: Dec 10, 2021
Breach occurred: Dec 10, 2021
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 22, 2022
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Engaged outside IT security experts
Secured our system and offices
Reviewed internal data management and protocols
Implemented enhanced security measures
Offering identity theft protection services through IDX
Changes made: Upgraded both our hardware and software systems
Actively engaged security specialists to create stronger barriers against any future breach attempts
Implemented enhanced security measures to help prevent this type of incident from recurring
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 32 weeks(224 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Indiana State AGJul 22 · first

Delaware State AGJul 22 · first · this page

Maine State AG+38d

Pattern: first filing Jul 22 (IN), last Aug 29 (ME) — a 38-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://attorneygeneral.delaware.gov/wp-content/uploads/sites/50/2022/09/Kohler-and-Eyre-All-States-Notice-Letter-Executed-147944109_1.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 22, 2022
Raw hash: 783f15809af2c8a34cbf540d42320f1cc3826fa53de9dcfc0cdf134c44bdb7de

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityKohler and Eyre, CPAs

Victim entityKohler and Eyre, CPAs

Incidentdiscovered Dec 10, 2021

Stated responseEngaged outside IT security experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceattorneygeneral.delaware.gov