Critical Advisory On RansomHub Ransomware

The advisory summarizes RansomHub (aka Cyclops/Knight), a fast-emerging double‑extortion ransomware active since February 2024 that targets a wide range of sectors including critical infrastructure; it documents initial access methods (phishing, CVE exploitation, password spraying), internal reconnaissance and lateral movement tools, exfiltration techniques (cloud storage, HTTP POST), encryption details, IOCs, and recommended mitigations endorsed by FBI/CISA/MS‑ISAC/HHS.