secwatch.observer — SEC 8-K summary
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Issuer:     Astrana Health, Inc. (ASTH)
CIK:        0001083446
Form:       8-K
Filed at:   2026-09-23T11:30:13+00:00
Accession:  0001104659-26-109813
Event type: cyber
Sentiment:  negative
Materiality: 0.85
Item codes: 1.05
LLM model:  deepseek-v4-flash:cloud@v2

Astrana Health discloses cybersecurity incident; data possibly accessed via social engineering
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- Incident detected at subsidiary Astrana Health Management; social engineering spoofed corporate phone number to access systems.
- Engaged third-party cybersecurity firm, notified law enforcement, regulators, and payer partners.
- Remedial measures: reset credentials, restricted remote access, restored from clean backups, enhanced monitoring.
- Believes private/confidential info accessed without authorization; assessing patient, employee, provider data.
- Deemed material as of Sept 22, 2026; cannot estimate full impact; maintains cyber insurance but expects no material financial effect.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1083446/000110465926109813/0001104659-26-109813-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1083446/000110465926109813/asth-20260922x8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-26-109813

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