Yemeni Man Charged in Federal Indictment Alleging He Sent ‘Black Kingdom’ Malware to Extort Businesses, Schools, and Medical Clinics
May 1, 2025. A press release from the U.S. Attorney’s Office for the Central District of California: LOS ANGELES – A Yemeni national was charged today in a three-count federal grand jury indictment alleging he deployed the so-called “Black Kingdom” ransomware against computer servers owned organizations worldwide, including businesses, schools, and hospitals in the United States, […]

Defending Against UNC3944/Scattered Spider: Cybercrime Hardening Guidance from the Frontlines – Mandiant
Background UNC3944, which overlaps with public reporting on Scattered Spider, is a financially-motivated threat actor characterized by its persistent use of social engineering and brazen communications with victims. In early operations, UNC3944 largely targeted telecommunications-related organizations to support SIM swap operations. However, after shifting to ransomware and data theft extortion in early 2023, they impacted […]