CALIFORNIAHackingHealthcareHealthcarePhishingCustomer Data InvolvedPHIHealth (basic)Identity (basic)Financial accountMediumContained

GUARDANT HEALTH, INC.

bd_c79c29453cfda198 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Sep 14, 2018

To disclose

—

Affected

1,112

Linked

2 filings

Confidence

69%

Full breach record for GUARDANT HEALTH, INC. →4 incidents on file

Guardant Health, Inc. reported to HHS on 2018-09-14 a Hacking/IT Incident affecting 1,112 individuals. Breached information located on Email. A hacker attacked the system via a phishing email, exposing demographic, clinical, and health insurance PHI. The entity notified HHS and individuals, and implemented MFA, enhanced email monitoring, and workforce training.

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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

Sep 14, 2018

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

Montana State AGbd_4fbeca7bd9e1cb012018-09-16 · +2dVerified

Name: GUARDANT HEALTH, INC.
norm: guardant health
Domain: guardanthealth.com
Industry: Health Care Services

Name: GUARDANT HEALTH, INC.
norm: guardant health
Domain: guardanthealth.com
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 1,112nationwide
Data types: PHIHealth (basic)Identity (basic)Financial account
HHS breach type: Hacking / IT incident
Where the data lived: Email
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: External
Regulator citations: Notified HHSOCR obtained evidence of the CE’s risk analysis and safeguards implemented prior to the breach
Initial access: phishing_link

During the incident: Provided breach notification to HHS and affected individuals
Strengthened its administrative and technical safeguards
Providing additional workforce member training to identify phishing attempts
Implementing multi-factor authentication to its email account
Adding enhanced email monitoring
Increasing password complexity
Changes made: Providing additional workforce member training to identify phishing attempts
Implementing multi-factor authentication to its email account
Adding enhanced email monitoring
Increasing password complexity
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 · 2 states

View merged incident ↗

HHS OCRSep 14 · first · this page

Montana State AG+2d

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: Sep 14, 2018
Raw hash: 6ad58d5987cfb011c70a1afffde027e9b5335f92473dfe832b271b8b2d5646af

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Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityGUARDANT HEALTH, INC.

Victim entityGUARDANT HEALTH, INC.

IncidentUnauthorized Access

Stated responseProvided breach notification to HHS and affected individuals

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing