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Astrana Health tells SEC hack exposed sensitive data. Social Engineering Attack Potentially Compromised Patient, Provider, Corporate Data Marianne Kolbasuk McGee (HealthInfoSec) - September 28, 2026 California-based Astrana Health has informed the U.S. Securities and Exchange Commission that a recent hack involving a social engineering campaign against the managed services organization affected a wide variety of sensitive and confidential data that might have been stolen. Astrana in a filing on Wednesday said it recently detected unusual activity in its IT environment. The company didn't disclose the date. "The incident involved a series of social engineering attempts in which threat actors, impersonating company personnel and spoofing the company's main corporate telephone number, contacted certain employees in an effort to obtain unauthorized access to company systems," Astrana told the SEC. Astrana's cybersecurity team responded to the activity, launched an investigation, engaged third-party cybersecurity and digital forensics experts, and notified law enforcement, as well as partners and state and federal regulators, the company said. Astrana said it has also taken remedial actions, including resetting affected credentials, restricting remote access tools, restoring certain systems from clean backups and enhancing monitoring, logging and detection capabilities across its environment. While Astrana's investigation into the hack is ongoing, so far the company said it believes some private and confidential information maintained on its servers was accessed or exfiltrated. Astrana is assessing whether patient, employee, credentialed providers, business and financial information, intellectual property and other information was affected. "While the investigation is ongoing, the company has determined that the incident is material as of Sept. 22, due to the potential confidential and sensitive nature of the data that is involved," Astrana told the SEC. Astrana also said that it still doesn't know the full impact of the incident on "business strategy, operations, financial condition or results of operations, including remediation and response costs, legal, regulatory and notification-related matters, and possible effects on providers, patients, counterparties and the company's reputation, or the impact on the trading price of the company's common stock." But the company said it doesn't expect the hack to affect the company's financial condition or operations. While Astrana said it has cyber insurance that may cover some losses related to the hack, "there can be no assurance that such coverage will be sufficient to cover all losses the company may incur," the filing says. Astrana, which reported total revenue of nearly $3.2 billion in 2025, describes itself on its website as a management services organization comprised of healthcare professionals and more than 600 employee associates. The company provides "comprehensive administrative support and various auxiliary services." As of Friday, no specific threat actor group had yet appeared to claim responsibility on the darkweb for the hack on Astrana. Astrana did not immediately respond to ISMG's request for comment and additional details about the incident. The attack on Astrana is among the latest recent social engineering and phishing hacks reported in recent months to the SEC by large publicly traded healthcare sector companies. Others include an attack reported to the SEC in June by Clover Health, a provider of Medicare Advantage health plans and a vendor of artificial intelligence-enabled clinical decision support tools for physicians. Also, Pennsylvania-based AdaptHealth, a home medical equipment supplier, in July reported a social engineering attack that compromised patient data. AdaptHealth reported the incident to the U.S. Department of Health and Human Services in August as a HIPAA breach affecting more than 4.1 million people (see: Breach Roundup: China Calls for Stronger AI Oversight).

Clover Health adds Torricelli, Miller to board. Former U.S. Sen. Robert Torricelli, D-N.J., and Brian Miller, MD, have been appointed to Clover Health's board of directors, confirming the Clover Health Torricelli Miller board additions announced Sept. 24. What these Clover Health Torricelli Miller board roles will involve. Torricelli will serve on Clover's audit committee, while Miller will be on the clinical committee. This division of committee assignments reflects each new director's distinct background, financial and policy expertise for Torricelli, clinical and Medicare payment policy expertise for Miller. Torricelli's background before this Clover Health board appointment. Torricelli has been a director of Clover's insurance subsidiaries since 2022. He founded business strategy firm Rosemont Associates in 2002 and real estate development firm Woodrose Properties in 2003. He was also executive vice president and COO of healthcare services company Aveta, giving him direct prior healthcare industry operational experience beyond his political and business background. Miller's background behind this Clover Health Torricelli Miller board appointment. Miller is an associate professor at Baltimore-based Johns Hopkins University and has practiced at Johns Hopkins Hospital. Since May 2023, he has been a commissioner on the Medicare Payment Advisory Commission, an agency that advises Congress on Medicare. He has also been on the board of trustees for the North Carolina State Health Plan since January 2025 and became vice chairman in April 2026. Why Miller's federal policy background stands out. Previously, Miller held roles at CMS, the FDA, and federal commissions, giving him direct experience across multiple federal health regulatory and payment bodies. This combination of active MedPAC commissioner status alongside prior CMS and FDA experience positions Miller to bring current, firsthand insight into Medicare payment policy debates directly into Clover's boardroom. Leadership's statement on this Clover Health Torricelli Miller board appointment. "Bob brings deep ties to New Jersey communities, experience navigating federal policy and firsthand knowledge of Clover," Clover CEO Andrew Toy said in the news release. "Brian combines clinical experience with a national perspective on Medicare payment and technology policy. His insights will help us advance care that improves quality, operates more efficiently and generates meaningful savings." Why this combination of directors fits Clover's strategic needs. Toy's framing suggests the two appointments were chosen to complement each other: Torricelli's regional and organizational familiarity with Clover paired with Miller's national Medicare payment and technology policy perspective, potentially strengthening the board's ability to navigate both local market dynamics and evolving federal reimbursement policy simultaneously. How this fits Clover's broader board composition. Clover's board now has nine directors, with the appointments filling two vacancies. This board expansion follows Chelsea Clinton's earlier departure from Clover Health's board, meaning these two new directors are specifically replacing the resulting openings rather than representing a net increase in board size beyond its prior full complement. Why filling these vacancies with this specific expertise matters. Choosing a former senator with existing Clover subsidiary board experience and an active MedPAC commissioner with federal regulatory experience to fill these two vacancies suggests Clover prioritized candidates who could immediately contribute both organizational continuity and current Medicare policy expertise, rather than seeking entirely new outside perspectives. What this Clover Health Torricelli Miller board appointment means going forward. With Miller's active role on MedPAC, the federal commission that advises Congress on Medicare payment policy, Clover Health gains a board member with direct, current insight into the federal policy discussions shaping Medicare Advantage reimbursement, potentially valuable given Clover's business as a Medicare Advantage-focused insurer. Given Torricelli's existing tenure on Clover's insurance subsidiary boards since 2022, his elevation to the parent company board level reflects continuity in governance rather than the introduction of an entirely unfamiliar director. What to watch going forward. As Torricelli and Miller settle into their respective audit and clinical committee roles, industry observers will likely watch whether Miller's MedPAC perspective visibly shapes Clover's approach to Medicare Advantage payment strategy and quality initiatives. Given the broader context of significant executive and board transitions across the payer industry this year, this Clover Health Torricelli Miller board appointment adds to a pattern of insurers seeking directors with direct federal health policy experience as Medicare Advantage reimbursement and regulatory scrutiny continue intensifying industrywide.

Clover Health has appointed former US Senator Robert Torricelli and Dr Brian J. Miller to its board of directors, filling two vacant positions and bringing the board to nine directors. Senator Torricelli will serve on the audit committee, whilst Dr Miller will join the clinical committee. Torricelli represented New Jersey in Congress for 20 years and has served on Clover's insurance subsidiary board since 2022. Dr Miller is a practising hospitalist at Johns Hopkins Hospital and currently serves as a commissioner on the Medicare Payment Advisory Commission. Chief executive Andrew Toy said the appointments strengthen the board with expertise spanning public service, Medicare Advantage, clinical practice and healthcare policy. The company operates a physician enablement technology platform and provides Medicare Advantage plans across several US states.