The akira ransomware group listed Nadel Architects on its data leak site on 2025-12-08. Country: US Sector: Professional Services Domains named: nadelarc.com Claim as published on the leak site: Nadel Architects has been a leader in comprehensive architecture design and planning services for over 50 years, known for their c reativity, integrity, and cost-effective solutions. We are ready to upload 472gb of corporate data. Personal informat ion of employees (passports and other information), agreements an d contracts, confidential project files, financials, NDAs, and so on.