ConnectWise suspended its Cloud Backup (formerly SkyKick), SaaS Security and Cloud Management services on October 17-18 after attackers abused a compromised application credential to access customers' Microsoft 365 tenants. Huntress saw the Cloud Backup identity sign in to 162 M365 tenants between October 15 and 16. By October 17 it had f…
Huntress reports that a stolen vendor credential for ConnectWise Cloud Backup (formerly SkyKick) was used on October 15, 2026 to obtain Microsoft Graph tokens in customer Microsoft 365 tenants from the hosting IP 144.172.64.128. As of 19:00 UTC on October 16, Huntress had confirmed unauthorized sign-ins in 162 tenants. Later updates found…
An active supply chain attack is abusing a compromised credential for the ConnectWise Cloud Backup (formerly SkyKick) Microsoft 365 OAuth application, giving unknown actors access to customer tenants. Huntress confirmed unauthorized sign-ins in 173 partner/customer tenants, and Microsoft reports broad successful service principal authenti…
GreyNoise reports that a single malicious cyber actor, tracked since 7 May 2026, is a suspected Chinese speaker working in UTC+8 and is the same as or related to Red Heron (reported by Acronis), based on the shared C2 domain, malware family, Gitea exploitation and other TTPs. The actor exploited the wp2shell WordPress chain (CVE-2026-6303…