Social EngineeringProfessional ServicesProfessional ServicesPhishingData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)Financial accountMediumContained

Colehour Cohen

bd_759566d6dd56ac4a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 17, 2021

Filed

May 17, 2021

To disclose

9 weeks

Affected

1state residents only

Confidence

66%

Full breach record for Colehour Cohen →2 incidents on file

Colehour + Cohen, a communications and marketing agency, notified the New Hampshire Attorney General of a cybersecurity incident affecting one NH resident. An employee's email account was compromised by an unauthorized user between February 16 and March 17, 2021. The breach potentially exposed names, Social Security numbers, dates of birth, and financial information. The company engaged forensic investigators, provided 12 months of complimentary credit monitoring via Kroll, and implemented multi-factor authentication and enhanced cybersecurity training.

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Incident timeline

undetected · 29 days

discovery → filing · 9 weeks / 61 days

Feb 16, 2021

Begins

Mar 17, 2021

Discovered

May 17, 2021

Filed

vs. sector median

9 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: Wilson, Elser, Moskowitz, Edelman & Dicker LLP
norm: wilson elser moskowitz edelman dicker
Domain: wilsonelser.com

Name: Colehour Cohen
norm: colehour cohen
Industry: Professional Servicesllm

Discovered: Mar 17, 2021
Breach occurred: Feb 16, 2021 – Mar 17, 2021
Undetected for: 29 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 28, 2021
Affected individuals: 1state-resident count only
Data types: Government IDIdentity (basic)Financial account
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: phishing_link

During the incident: Engaged a third party forensic team to review the impacted email account
Provided the affected individuals with complimentary credit monitoring services for a period of twelve (12) months
Secured the services of Kroll to provide identity monitoring services
Changes made: Implementing multi-factor authentication
Implementing new cybersecurity training for employees
Working with professionals to implement new security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(61 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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://mm.nh.gov/files/uploads/doj/remote-docs/colehour-cohen-20210517.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 17, 2021
Raw hash: ac932b02bd3c7cf017f1222d4f75d13839fcdeafe2ac57e7be2b8ae17f7d63ef

Reporting entityWilson, Elser, Moskowitz, Edelman & Dicker LLP

Victim entityColehour Cohen

Incidentdiscovered Mar 17, 2021

Stated responseEngaged a third party forensic team to review the impacted email account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov