Wednesday, October 21, 2026
Saga
ConnectWise Cloud Backup Microsoft 365 tenant breach response
Overview
Description ConnectWise is responding to a Cloud Backup supply-chain breach that exposed Microsoft 365 tenants through compromised vendor credentials. Overview Attackers used a compromised ConnectWise Cloud Backup credential to access 173 Microsoft 365 customer and partner tenants. ConnectWise suspended Cloud Backup, disabled…
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Stories in this saga
1 story, 3 sources
Oct 20, 2026
ConnectWise Shuts Cloud Backup and Disables 7 App Identities After Breach
- Hackers Breach 173 Microsoft 365 Tenants via ConnectWise Attack3 days ago
- ConnectWise Resets App Credentials as M365 Backups Stay Offline17 hours ago