China-linked group Fire Ant exploits VMware and F5 flaws since early 2025

China-linked group Fire Ant exploits VMware and F5 flaws to stealthily breach secure systems, reports cybersecurity firm Sygnia. China-linked cyberespionage group Fire Ant is exploiting VMware and F5 vulnerabilities to stealthily access secure, segmented systems, according to Sygnia. Since early 2025, the group has targeted virtualization and networking infrastructure, primarily VMware ESXi and vCenter environments. […]

July 28, 2025
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Microsoft linked attacks on SharePoint flaws to China-nexus actors

Microsoft linked SharePoint exploits to China-nexus groups Linen Typhoon, Violet Typhoon, and Storm-2603, active since July 7, 2025. Microsoft confirmed that China-linked groups Linen Typhoon, Violet Typhoon, and Storm-2603 exploited SharePoint flaws for initial access as early as July 7, 2025. “As of this writing, Microsoft has observed two named Chinese nation-state actors, Linen Typhoon […]

July 23, 2025
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