The stormous ransomware group listed ams-group.co.uk FULL DATA DUMP 33GB on its data leak site on 2026-05-10. Country: GB Sector: Professional Services Domains named: ams-group.co.uk Claim as published on the leak site: The extracted data comprises administrative and financial records, payroll sheets, and client and partner directories, alongside technical and engineering specifications, employee records, and business plans. It also includes architectural designs, official contracts, detailed engineering reports, and construction site maps, as well as risk assessments, internal correspondence, and tax and legal information.