Ransomware Surge Hits 200+ Corporate Victims

Executive Summary: This report details a recent surge in double-extortion ransomware activity impacting over 200 victims worldwide, profiling multiple ransomware families (Rhysida, 8Base, MalasLocker), presenting technical analysis of Rhysida (encryption methods, exclusions, file extension ".rhysida", PDF ransom note, registry changes to set desktop background), leak-site activity and victim counts, MITRE ATT&CK mappings, IOCs (hashes), and recommended mitigations.