Why the REvil Ransomware Gang Is Dominating Headlines in 2021

This report reviews the REvil ransomware operation and its July supply‑chain attack against Kaseya, describing REvil’s RaaS model, high‑value extortion campaigns (including Acer and JBS), large ransom demands, affiliate dynamics, and the operational impact on victims; it also outlines defensive measures and mentions that REvil infrastructure went offline shortly after the Kaseya incident.