Last updated October 17, 2026 An attacker used a compromised credential belonging to ConnectWise Cloud Backup (formerly SkyKick) to sign in to customers’ Microsoft 365 tenants. The credential belongs to the application itself, so the attacker inherited the permissions granted to it. Here’s what’s known so far and what to check in your own tenant.
ConnectWise SkyKick Breach: How to Check Your Microsoft 365 Tenant
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