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Horizonhealthcarercm cybersecurity incidents and threat signals
horizonhealthcarercm.com
This company page brings together public reporting currently associated with Horizonhealthcarercm. It reflects signals published by Shadow Tier and should not be read as a complete incident history.
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July 1, 2026
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Based on all published signals currently linked to Horizonhealthcarercm. Affected countries come from victim data; the company country above remains a separate profile fact. Counts describe this reporting set, not overall incident prevalence.
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Horizon Healthcare RCM hit by ransomware attack, sensitive data leaked
Horizon Healthcare RCM suffered a ransomware attack between December 25 and December 27, 2024. The incident resulted in the leak of sensitive data, including health insurance information and social security numbers. The company reportedly paid the ransom, but it remains uncertain if the attackers retained copies of the compromised data. The incident was disclosed on December 27, 2024.
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What does the Horizonhealthcarercm page include?
It combines a reviewed organization profile with all current published Shadow Tier signals explicitly linked to Horizonhealthcarercm.
Does every mention of Horizonhealthcarercm appear here?
No. A signal must contain a reliable company connection and meet the publication criteria; incidental or ambiguous mentions are excluded.
Why can the incident count change?
The page follows current published reporting. Counts change as new evidence is added, classifications are reviewed, or older signals leave the reporting window.