Ransomware Families: 2021 Data to Supplement the Unit 42 Ransomware Threat Report 43,397 people reacted Ransomware Families: 2021 Data to Supplement the Unit 42 Ransomware Threat Report By Guang Qing He, Cecil Liu, Aiden Huang and Royce Lu July 28, 2021 at 6:00 AM 55 7 min. read