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Anne Arundel County, Maryland confirms August breach; Rhysida claims 2.6TB theft

brief 2026-10-19quick readMediumactor: Rhysida

Anne Arundel County confirmed unauthorized access to a limited number of government systems after noticing irregular activity on August 28, with files copied from those systems. The Rhysida ransomware gang claims it stole 2.6TB of documents and demands $2 million, though the county has not confirmed the claim or the data involved. The source gives no technical details of the intrusion, so hunters have no published behaviors to search for beyond the claimed ransomware extortion.