Social EngineeringProfessional ServicesProfessional ServicesPhishingCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Cornerstone Benefits, Inc.

bd_3ad9f34c042a8284 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 23, 2019

Filed

Oct 21, 2019

To disclose

13 weeks

Affected

2state residents only

Linked

3 filings

Confidence

67%

Full breach record for Cornerstone Benefits, Inc. →

Cornerstone Benefits, Inc. notified the New Hampshire Attorney General of a data security incident involving unauthorized remote access to an employee's email account. The breach potentially exposed personal information, including names, addresses, Social Security numbers, and financial account details, of two New Hampshire residents. Notifications were mailed on October 18, 2019, offering one year of credit monitoring.

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Incident timeline

discovery → filing · 13 weeks / 90 days

Jul 23, 2019

Discovered

Oct 21, 2019

Filed

vs. sector median

6 wks faster

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

Massachusetts State AGbd_6d36f6fe39c854e62019-10-21Verified
Montana State AGbd_77b5bd0bd46e937b2019-10-21Candidate

Name: Polsinelli PC
norm: polsinelli

Name: Cornerstone Benefits, Inc.
norm: cornerstone benefits
Industry: Professional Servicesllm

Discovered: Jul 23, 2019
Materiality determined: —
Notification sent: Oct 18, 2019
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: External
Initial access: phishing_link

During the incident: Secured the email account credentials
Retained a leading forensic security firm to investigate and confirm the overall security of its email and computer systems
Notified the Organizations
Provided the employee training on phishing and email safety
Changes made: Reviewing our technical controls
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 weeks(90 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 ↗

Massachusetts State AGOct 21 · first

Montana State AGOct 21 · first

New Hampshire State AGOct 21 · first · this page

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/cornerstone-benefits-20191021.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 21, 2019
Raw hash: 89d56faf403d278d4b6d80caa0c225e01e054436b682ba117304d9f61157f9e4

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityPolsinelli PC

Victim entityCornerstone Benefits, Inc.

Incidentdiscovered Jul 23, 2019

Stated responseSecured the email account credentials

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov