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Pennington County cyber incident disrupts offices

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Pennington County identified a cybersecurity incident by July 5, 2026, and closed most public-facing offices July 6. Offices reopened July 7, but payments, vehicle registrations, records, permits and meeting livestreams remained limited during staged recovery. The county website still warned of significant service impacts July 26 while personal-information effects, the attack mechanism, ransomware and attribution remained unresolved.

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