A critical vulnerability inSynology’s Active Backup for Microsoft 365 (ABM)has exposed sensitive data from Microsoft 365 tenants worldwide, potentially impacting over a million organizations relying on the popular backup solution. The flaw, tracked as CVE-2025-4679, allowed attackers to access confidential Microsoft 365 content”, including Teams messages, group memberships, Outlook conversations, and calendar data”, without requiring prior access to […] The post Synology ABM Vulnerability Leaks Microsoft 365 Sensitive Information appeared first on GBHackers Security | #1 Globally Trusted Cyber Security News Platform.
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