HackingHealthcareHealthcareDelayed DiscoveryCustomer Data InvolvedIdentity (basic)Government IDHighResolved

Cornerstone Care, Inc.

bd_754c280e04a70fb0 · schema v1 · pii pii-v1

Severity

High

Discovered

Jan 13, 2021

Filed

Feb 25, 2021

To disclose

6 weeks

Affected · nationwide

11,4871 in this filing

Linked

3 filings

Confidence

65%

Full breach record for Cornerstone Care, Inc. →2 incidents on file

Healthcare provider Cornerstone Care, Inc. experienced an unauthorized access incident that affected 11,487 individuals. The breach occurred on November 13, 2019, but was not discovered until January 13, 2021. The compromised information includes names and Social Security numbers. Affected individuals were notified on February 25, 2021, and offered 12 months of credit monitoring and identity protection services.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Jan 13, 2021 → Filed with AG Feb 25, 202143d ⏱ ME AG >30d6 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 427 days

discovery → filing · 6 weeks / 43 days

Nov 13, 2019

Begins

Jan 13, 2021

Discovered

Feb 25, 2021

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

HHS OCRbd_97f4024091800bc02021-02-25Verified
Massachusetts State AGbd_3e4e32a736f6e27e2021-03-02 · +5dVerified

Name: Cornerstone Care, Inc.
norm: cornerstone care

Name: Cornerstone Care, Inc.
norm: cornerstone care
Industry: Healthcarellm

Discovered: Jan 13, 2021
Breach occurred: Nov 13, 2019
Undetected for: 427 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 25, 2021
Affected individuals: 11,487state + nationwide
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access

During the incident: Provided 12 months of credit monitoring and identity protection services
Sent written notification to affected individuals
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(43 days from discovery to filing)
Compliance flags: ME AG >30d · 43d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Jan 13, 2021
→ Filed with AG: Feb 25, 2021
43d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jan 13, 2021 → Filed with AG: Feb 25, 2021	43d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

HHS OCRFeb 25 · first

Maine State AGFeb 25 · first · this page

Massachusetts State AG+5d

Pattern: first filing Feb 25 (PA), last Mar 2 (MA) — a 5-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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/fc0c979a-9992-4c9b-9cb4-c6b36f83162a.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 25, 2021
Raw hash: bbf2c47c9d90896a6e54b15631e089301857d5ad7d4838714ada9c764c04f597

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityCornerstone Care, Inc.

Victim entityCornerstone Care, Inc.

Incidentdiscovered Jan 13, 2021

Stated responseProvided 12 months of credit monitoring and identity protection services

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov