Social EngineeringProfessional ServicesProfessional ServicesPhishingCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDEmploymentMediumContained

GreyHealth Group

bd_7acafbed1ef56764 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 6, 2018

Filed

Mar 1, 2018

To disclose

23 days

Affected · nationwide

6831 in this filing

Confidence

67%

Full breach record for GreyHealth Group →

GreyHealth Group notified the NH AG that an employee sent 2017 W2 forms (containing SSNs, names, addresses, salaries) to an unauthorized recipient on Jan 26, 2018, after being targeted by a phishing scam. The company discovered the incident on Feb 6, 2018. Approximately 683 US employees were affected, including 1 NH resident. The company offered 2 years of credit monitoring via Experian.

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Incident timeline

undetected · 11 days

discovery → filing · 23 days

Jan 26, 2018

Begins

Feb 6, 2018

Discovered

Mar 1, 2018

Filed

vs. sector median

16 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed683 affectedView incident

Name: GreyHealth Group
norm: greyhealth group

Name: GreyHealth Group
norm: greyhealth group
Industry: Professional Servicesllm

Discovered: Feb 6, 2018
Breach occurred: Jan 26, 2018
Undetected for: 11 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 683state + nationwide
Data types: Identity (basic)Government IDEmployment
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General
Initial access: phishing_link

During the incident: Consulting with security experts
Consulting with tax advisers
Consulting with legal counsel
Consulting with law enforcement
Offering identity theft and credit monitoring services for two years
Changes made: Implementing additional quality controls to avoid similar incidents in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 days(23 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/greyhealth-20180301.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 1, 2018
Raw hash: 5df50dd76bcdfaeaacc96ab7268829a9542116ce404bd8094c5f680c3649ee05

Reporting entityGreyHealth Group

Victim entityGreyHealth Group

Incidentdiscovered Feb 6, 2018

Stated responseConsulting with security experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov