TENNESSEEHackingHealthcareHealthcarePHIHealth (basic)Identity (basic)Financial accountMediumContained

BLUECROSS BLUESHIELD OF TENNESSEE, INC.

bd_b37bf3538cf2aca4 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Dec 19, 2023

To disclose

—

Affected

1,676

Confidence

69%

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

BlueCross BlueShield of Tennessee, Inc. reported to HHS on 2023-12-19 a Hacking/IT Incident affecting 1676 individuals. Breached information located on Network Server. A vendor of the entity's business associate experienced a cyber-attack compromising PHI including names, birthdates, claims, financial info, and treatment data.

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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

Dec 19, 2023

Filed

—

No filing yet · watching

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

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1,676 affectedView incident

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

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

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 1,676nationwide
Data types: PHIHealth (basic)Identity (basic)Financial account
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Health planBusiness associate involved
Attack vector: Unauthorized Access
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: External
Regulator citations: Notified HHS

During the incident: Notified HHS
Notified affected individuals
Notified the media
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.

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: Dec 19, 2023
Raw hash: 0386c3fc42ae8c2327c1845c631f890f52968b245a101dd2c9332c034184ffbc

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Reporting entityBLUECROSS BLUESHIELD OF TENNESSEE, INC.

Victim entityBLUECROSS BLUESHIELD OF TENNESSEE, INC.

IncidentUnauthorized Access

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing