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Passaiccountynj cybersecurity incidents and threat signals
passaiccountynj.org
This company page brings together public reporting currently associated with Passaiccountynj. It reflects signals published by Shadow Tier and should not be read as a complete incident history.
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June 26, 2026
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Based on all published signals currently linked to Passaiccountynj. 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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Passaic County, NJ Hit by Medusa Ransomware Attack
Passaic County, New Jersey, experienced a ransomware attack by the Medusa group on March 17, 2026. The attack disrupted the county's local government systems, including phone lines and IT infrastructure, affecting nearly 600,000 residents. Medusa claimed responsibility and demanded an $800,000 ransom. The county had initially announced a malware attack on March 4, but Medusa's claim and the specific ransomware strike date were reported on March 17. While Medusa claimed data exfiltration, the county has not fully confirmed the extent of data theft.
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What does the Passaiccountynj page include?
It combines a reviewed organization profile with all current published Shadow Tier signals explicitly linked to Passaiccountynj.
Does every mention of Passaiccountynj 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.