Pierluigi Paganini
February 10, 2026
China-linked group UNC3886 targeted Singapore ’s telecom sector in a cyber espionage campaign, Singapore’s Cyber Security Agency revealed. Cyber Security Agency of Singapore (CSA) and the Infocomm Media Development Authority (IMDA) ran Operation CYBER GUARDIAN to protect the telecom sector. Since July 2025, investigations showed China-linked UNC3886 launched a targeted campaign against all four major […]
Pierluigi Paganini
July 20, 2025
Singapore says China-linked group UNC3886 targeted its critical infrastructure by hacking routers and security devices. Singapore accused China-linked APT group UNC3886 of targeting its critical infrastructure. UNC3886 is a sophisticated China-linked cyber espionage group that targets network devices and virtualization technologies using zero-day exploits. Its primary focus is on defense, technology, and telecommunications sectors in […]
Pierluigi Paganini
January 19, 2024
China-linked group UNC3886 has been exploiting vCenter Server zero-day vulnerability CVE-2023-34048 since at least late 2021. Mandiant researchers reported that China-linked APT group UNC3886 has been exploiting vCenter Server zero-day vulnerability CVE-2023-34048 since at least late 2021. vCenter Server is a critical component in VMware virtualization and cloud computing software suite. It serves as a […]
Pierluigi Paganini
June 14, 2023
A China-linked APT group tracked as UNC3886 has been spotted exploiting a VMware ESXi zero-day vulnerability. Mandiant researchers observed a China-linked cyberespionage group, tracked as UNC3886, exploiting a VMware ESXi zero-day vulnerability tracked as CVE-2023-20867. “VMware Tools contains an Authentication Bypass vulnerability in the vgauth module.” reads the advisory published by VMware. “A fully compromised […]
