Microsoft says China-backed hacker targeted critical infrastructure in US and Guam

Microsoft said on Wednesday it had uncovered malicious activity by a state-sponsored actor based in China aimed at critical infrastructure organizations in Guam and the United States. Microsoft said it assessed with "moderate confidence" that this Volt Typhoon campaign "is pursuing development of capabilities that could disrupt critical communications infrastructure between the United States and Asia region during future crises". Volt Typhoon has been active since mid-2021. Guam is home to major US military facilities, including the Andersen air force base, which would be key to responding to any conflict in the Asia-Pacific region. Microsoft said it had notified targeted…