The quantum ransomware group listed Shaw & Slavsky on its data leak site on 2022-08-19. Country: US Sector: Manufacturing Claim as published on the leak site: Shaw & Slavsky was founded in 1932 as a manufacturer of POP signs for grocery retailers. Since our inception, we have provided innovative signage and merchandising solutions for retailers. We have over 100,000 square feet of manufacturing capacity to build stock and custom signage and fixtures.