China-Linked UNC3886 Targets Singapore Telecom Sector in Cyber Espionage Campaign

**UNC3886 targeted Singapore's telecommunications sector:** Singapore's Cyber Security Agency reported that the China-linked APT UNC3886 conducted a deliberate, long-running cyber espionage campaign against all four major telcos (M1, SIMBA Telecom, Singtel, StarHub), leveraging virtualization- and edge-targeting techniques (including infiltration of VMware ESXi/vCenter and network appliances), a weaponized zero-day to bypass a perimeter firewall, and rootkits for persistence; authorities launched operation CYBER GUARDIAN to remediate access and expand monitoring, and reported no evidence of customer data exfiltration or service disruption.