Tag: Linen Typhoon

Microsoft has confirmed that three China-linked threat groups were behind the recent wave of attacks targeting on-premises SharePoint Server installations. According to the company’s report, since early July, the vulnerabilities identified as CVE-2025-53770 and CVE-2025-53771 have been actively exploited by the adversarial groups known as Linen Typhoon (APT27), Violet Typhoon (APT31), and Storm-2603. All three…