Ransomware Families: 2021 Data to Supplement the Unit 42 Ransomware Threat Report 45,838 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 56 7 min. read