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Cyber Threat
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Ransomware victim Healthcare

Herald Christian Health Center

Listed by Osiris on · organisation based in United States

Disclosed
Nov 11, 2026
Leak-site listing date
Threat group
Osiris
10 victims listed
Country
United States
#1 most targeted
Sector
Healthcare

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Osiris. Figures and technique mappings are quoted from the source data, not inferred.

About the Osiris group

Osiris is a ransomware-as-a-service operation first observed in November 2025 that uses a Bring Your Own Vulnerable Driver (BYOVD) technique to disable endpoint detection tools before deploying hybrid ECC + AES-128-CTR encryption; Symantec researchers linked its operators to former INC ransomware affiliates. Osiris has listed 2 victims since December 2025.

Incident analysis

Herald Christian Health Center was listed by Osiris ransomware, a group with 10 victims recorded in this database. The listing appeared on the group's leak site on November 11, 2026.

Herald Christian Health Center is based in United States and operates in the Healthcare sector. United States ranks #1 worldwide for ransomware disclosures, with 10,481 victims in this database.

Sector context. Healthcare organisations are high-value ransomware targets because patient data is extremely sensitive, regulatory penalties for breaches are severe, and operational downtime can threaten patient safety — all factors that increase ransom payment pressure.

Osiris typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was Herald Christian Health Center attacked by ransomware?

Yes. Herald Christian Health Center was listed as a victim of the Osiris ransomware group on November 11, 2026. The organisation is based in United States and operates in the Healthcare sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Herald Christian Health Center?

Herald Christian Health Center was attacked by Osiris ransomware. Osiris is one of the most active ransomware groups, having claimed 10 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Herald Christian Health Center ransomware attack occur?

The ransomware attack on Herald Christian Health Center was disclosed on November 11, 2026. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the Herald Christian Health Center ransomware attack?

The specific data stolen from Herald Christian Health Center has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Healthcare organisation, Herald Christian Health Center likely held patient records, medical data, and personally identifiable information (PII).

How can organisations protect against Osiris attacks?

To defend against Osiris and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.