Social EngineeringFinancial ServicesHealthcareFinancePhishingBECRansom DemandedCustomer Data InvolvedMulti-Stage ChainIdentity (basic)Health (basic)Financial accountLowContained

Cottingham & Butler

bd_58cf0ca139917ec2 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 6, 2021

Filed

Aug 23, 2021

To disclose

16 weeks

Affected

53state residents only

Linked

2 filings

Confidence

64%

Full breach record for Cottingham & Butler →2 incidents on file

Cottingham & Butler, Inc. notified Montana residents of a data breach involving a vendor's email account compromised via phishing. The incident, occurring between Dec 23, 2020 and Jan 27, 2021, exposed names, claims info, and member IDs. The actor attempted Business Email Compromise to divert wire payments. Credit monitoring offered.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 134 days

discovery → filing · 16 weeks / 109 days

Dec 23, 2020

Begins

May 6, 2021

Discovered

Aug 23, 2021

Filed

vs. sector median

+7 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_77ffb3a329d85cf62021-07-30 · +24dVerified

Name: Cottingham & Butler
norm: cottingham butler
Domain: cottinghambutler.com

Name: Cottingham & Butler
norm: cottingham butler
Domain: cottinghambutler.com
Industry: Financial ServicesllmHealthcarellm

Discovered: May 6, 2021
Breach occurred: Dec 23, 2020 – Jan 27, 2021
Undetected for: 134 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 12, 2021
Affected individuals: 53state-resident count only
Data types: Identity (basic)Health (basic)Financial account
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Reported matter to law enforcement
Initial access: phishing_link

During the incident: Terminated unauthorized access
Changed employee credentials
Commenced investigation supported by forensics experts
Reported matter to law enforcement
Arranged for credit monitoring offer at no cost for two years
Changes made: Reinforced existing security protocols and processes
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 weeks(109 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 AGJul 30 · first

Montana State AG+24d · this page

Pattern: first filing Jul 30 (IN), last Aug 23 (MT) — a 24-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/notificationLetter-71.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 23, 2021
Raw hash: 14dca39074ea804c16806c6a18476b06469f7d76e1668f3876fae24cf63249f2

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityCottingham & Butler

Victim entityCottingham & Butler

Incidentdiscovered May 6, 2021

Stated responseTerminated unauthorized access

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov