TENNESSEEMalwareHealthcareHealthcareRansomwareCustomer Data InvolvedData EncryptedRansom DemandedHealth (basic)Identity (basic)HighResolved

MSK Group

bd_f5ad55829dac875e · schema v1 · pii pii-v1

Severity

High

Discovered

May 7, 2018

Filed

May 22, 2018

To disclose

15 days

Affected

566,236

Linked

4 filings

Confidence

50%

Full breach record for MSK Group →

MSK Group PC reported to HHS on 2018-05-22 a ransomware incident affecting 566,236 individuals. On May 7, 2018, the provider discovered that ransomware had blocked access to its computer servers, which contained patient electronic protected health information (ePHI), including demographic, clinical, and health insurance details. The entity engaged an IT firm for monitoring, retrained staff, and upgraded technical safeguards.

J jump to incidentP pin to compareR raw source

HIPAA clock✓ HHS report on time15 days 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

discovery → filing · 15 days

May 7, 2018

Discovered

May 22, 2018

Filed

vs. sector median

10 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_bbf341c45b4ddaef2018-07-05 · +44dVerified
New Hampshire State AGbd_d97d53a73d61bc362018-07-05 · +44dVerified
California State AGbd_ffa55054fea20f332018-07-05 · +44dCandidate

Name: MSK Group
norm: msk group
Domain: mskgroup.com
Industry: Health Care Services

Name: MSK Group
norm: msk group
Domain: mskgroup.com
Industry: Health Care Services
Industry: Healthcaresource default

Discovered: May 7, 2018
Materiality determined: —
Notification sent: —
Affected individuals: 566,236nationwide
Data types: Health (basic)Identity (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
Threat actor: External
Regulator citations: OCR obtained assurances that the CE implemented the corrective actions listed above and performed its notification obligations.

Changes made: Engaged an information technology firm to continuously monitor its information systems and respond to suspicious activity.
Retrained its workforce and implemented substantial technical safeguards, including upgrading firewall protections, reconfiguring servers, and restricting remote access.
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 days(15 days from discovery to filing)
Compliance flags: HHS report on timeHHS notified
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
HIPAA
Discovered: May 7, 2018
→ Notified: not extracted
— 60 days HHS report on time
HIPAA
Discovered: May 7, 2018
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: May 7, 2018 → Notified: not extracted	—	60 days	HHS report on time
HIPAA	Discovered: May 7, 2018 → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

HHS OCRMay 22 · first · this page

Massachusetts State AG+44d

New Hampshire State AG+44d

California State AG+44d

Pattern: first filing May 22 (TN), last Jul 5 (CA) — a 44-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://ocrportal.hhs.gov/ocr/breach/breach_report.jsf
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: May 22, 2018
Raw hash: 99f9f264e72f40a0e193e36af155fe4658336601453022e9c8e38865dcef335a

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Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMSK Group

Victim entityMSK Group

Incidentdiscovered May 7, 2018

Stated responseEngaged an information technology firm to continuously monitor its information systems and respond to suspicious activity.

ComplianceHHS report on time

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing