TENNESSEEHackingHealthcareHealthcareSupply Chain (3P Vendor)Business Associate (HIPAA)Downstream VictimsCustomer Data InvolvedPHIIdentity (basic)Medium

BLUECROSS BLUESHIELD OF TENNESSEE, INC.

bd_b62ca9af4b1e734b · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Feb 11, 2026

To disclose

—

Affected

1,670

Linked

2 filings

Confidence

91%

Full breach record for BLUECROSS BLUESHIELD OF TENNESSEE, INC. →11 incidents on file

BlueCross BlueShield of Tennessee, Inc., acting as a business associate, reported a Hacking/IT Incident affecting a network server. A subcontractor of its covered entity experienced the breach, which the BA reported affected approximately 37,402 individuals overall (HHS portal row attributes 1,670 to this filing). PHI involved names and other identifiers. BCBSTN notified HHS, affected individuals, and the media, and offered free credit monitoring. OCR provided technical assistance regarding the HIPAA Rules.

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HIPAA clock✓ HHS notified

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline — partial

? — ?

Breach window unknown

Feb 11, 2026

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_281db25830f7ce802025-12-26 · +47dCandidate

Name: BLUECROSS BLUESHIELD OF TENNESSEE, INC.
norm: bluecross blueshield of tennessee
Domain: bcbst.com

Name: BLUECROSS BLUESHIELD OF TENNESSEE, INC.
norm: bluecross blueshield of tennessee
Domain: bcbst.com
Industry: Health Insurance
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 1,670nationwide
Data types: PHIIdentity (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Business associate
Attack vector: Third-Party / Supply Chain
Threat actor: External
Regulator citations: OCR provided technical assistance regarding the HIPAA Rules

During the incident: Notified HHS
Notified affected individuals
Notified the media
Changes made: Provided free credit monitoring to affected individuals
Source: Quoted from the filing itself, not independently verified.

Compliance flags: HHS notified
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
Clock breakdown: Statute Window Elapsed Threshold Status
HIPAA
Discovered: not extracted
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: not extracted → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

HHS OCRDec 26 · first

HHS OCR+47d · this page

Pattern: first filing Dec 26 (TN), last Feb 11 (TN) — a 47-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: Feb 11, 2026
Raw hash: 56244d2a6f31e0b3ffeeb3978a93067c5e523a9f82cd26767d4f799150f85a58

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Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityBLUECROSS BLUESHIELD OF TENNESSEE, INC.

Victim entityBLUECROSS BLUESHIELD OF TENNESSEE, INC.

IncidentThird-Party / Supply Chain

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing