The hellcat ransomware group listed HighWire Press on its data leak site on 2025-04-05. Country: US Sector: Technology Domains named: highwirepress.com Claim as published on the leak site: Jiraware <<3 !! We hold sensitive data from HighWire Press, a leading platform serving scholarly publishers. The data includes internal documents, communications, and materials that could impact both HighWire and its publishing partners.