Tech firm hit by giant ransomware hack gets key to unlock victimsâ data Kaseyaâs universal key can free the files of hundreds of organizations, ending the worst of the attackâs fallout Kaseya, a Florida-based IT management provider, suffered a supply-chain attack considered the worst ransomware attack to date. Photograph: Omar Marques/SOPA Images/REX/Shutterstock Kaseya, a Florida-based IT management provider, suffered a supply-chain attack considered the worst ransomware attack to date. Photograph: Omar Marques/SOPA Images/REX/Shutterstock Thu 22 Jul 2021 19.47 EDT The software company at the center of a huge ransomware attack this month has obtained a universal key to unlock files of the hundreds of businesses and public organizations crippled by the hack.