Russian Global Webmail Espionage

Unit 42 RSS collection covering major cybersecurity developments published in July–June 2026, including Russian espionage against Zimbra webmail, chained Siemens ROX II OT zero-days, npm and AI supply-chain threats, IoT botnets, ransomware, infostealers, credential attacks, targeted espionage, cloud bucket hijacking, and Vertex AI cross-tenant remote code execution. The feed contains both active threats and vulnerability research; the highest-impact topics involve critical infrastructure compromise, persistent root access, cloud data exfiltration, and remote code execution.