The lockbit3 ransomware group listed protosign.it on its data leak site on 2023-09-06. Country: IT Sector: Manufacturing Domains named: protosign.it Claim as published on the leak site: Protosign SrlRegistered office: Via Giuseppe Candiani 98 -20158- Milann° Company register registration: MI-1714539 - 15/05/2003Share capital: €10,000.00 ivVAT number: 03949800969