By LinkedInEditors
Publication Date: 2026-10-17 20:00:00
A supply-chain attack involving ConnectWise’s cloud services has exposed Microsoft 365 customers to unauthorized application access, with researchers reporting successful sign-ins across 173 partner and customer tenants. The incident centres on credentials associated with ConnectWise Cloud Backup, formerly SkyKick, and raises concerns about attackers exploiting permissions already entrusted to business software.
ConnectWise has confirmed unauthorized access to application identities within its Cloud Backup environment. In an October 17 update on its service-status page, the company said it was shutting off application access, interrupting customer backups while investigation and remediation continued.
The company said it had found no indicators that stored partner backup data had been compromised. That statement…
