HackingProfessional ServicesProfessional ServicesStolen CredentialsTargetedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Cohen Milstein Sellers & Toll PLLC

bd_8518bf599d30e662 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 23, 2021

Filed

Jul 15, 2021

To disclose

25 weeks

Affected

679state residents only

Linked

7 filings

Confidence

66%

Full breach record for Cohen Milstein Sellers & Toll PLLC →

Cohen Milstein Sellers & Toll PLLC notified individuals of unauthorized access to its computer systems discovered on January 23, 2021. The incident involved the potential exposure of names and government identifiers (SSN, etc.). The firm engaged forensic specialists, enhanced security policies, and offered 24 months of credit monitoring. No specific count of affected individuals was disclosed in this filing.

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Incident timeline

discovery → filing · 25 weeks / 173 days

Jan 23, 2021

Begins

Jan 23, 2021

Discovered

Jul 15, 2021

Filed

vs. sector median

+7 wks slower

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Indiana State AGbd_2212320aea4ca59f2021-07-15Verified
California State AGbd_2ae6f151c432e2762021-07-15Verified
Maine State AGbd_860d35758e3839662021-07-15Verified
Oregon State AGbd_8c472d6d1cbb5e862021-07-15Verified

Show 2 more filings ↓up to 195d gap

Massachusetts State AGbd_d44fe187b2f7c6bd2021-07-15Verified
Illinois State AGbd_f096b5190ec35ed02021-01-01 · +195dCandidate

Name: Cohen Milstein Sellers & Toll PLLC
norm: cohen milstein sellers toll

Name: Cohen Milstein Sellers & Toll PLLC
norm: cohen milstein sellers toll
Industry: Professional Servicesllm

Discovered: Jan 23, 2021
Breach occurred: Jan 23, 2021
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 679state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: notifying individuals and relevant regulators as required
Initial access: valid_credentials

During the incident: Quickly disconnected the systems from the network
Commenced an investigation that included working with third-party forensic specialists
Initiated an exhaustive review of its systems to identify potentially impacted data
Reviewing and enhancing our existing policies and procedures
Offering complimentary access to twenty-four (24) months of credit monitoring and identity restoration services
Changes made: Reviewing and enhancing our existing policies and procedures to reduce the likelihood of a similar future event
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(173 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 7 states

View merged incident ↗

Illinois State AGJan 1 · first

Indiana State AG+195d

California State AG+195d

Maine State AG+195d

Oregon State AG+195d

Massachusetts State AG+195d

Montana State AG+195d · this page

Pattern: first filing Jan 1 (IL), last Jul 15 (MT) — a 195-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://dojmt.gov/wp-content/uploads/OCP/a-notif-87.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 15, 2021
Raw hash: fb4e2af4f3f90e6b05ce1e3672973f50b2076ff92c781fc238c1ab5c5277a98a

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityCohen Milstein Sellers & Toll PLLC

Victim entityCohen Milstein Sellers & Toll PLLC

Incidentdiscovered Jan 23, 2021

Stated responseQuickly disconnected the systems from the network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov