Severity: HighAction: Be aware

AI-driven, large-scale nation-state campaign using ARTEX enables supply chain compromise

Storm-0940 used ARTEX agentic AI to accelerate a ConnectWise supply chain compromise, enabling application credential abuse across Microsoft 365 environments.

Excerpt from the primary source: Microsoft Security Blog & MSRC

Who is affected

Small businesses · Enterprises · Security professionals

Affected technology: Microsoft 365

What you should do · Be aware

No immediate action is indicated. Share this with the relevant teams and watch for updates.

Automated guidance based on this story's classification. Check the linked advisories for specifics.

Sources

We link to original and authoritative sources. Headlines and excerpts belong to their publishers.

Vendor advisory

AI-driven, large-scale nation-state campaign using ARTEX enables supply chain compromise Microsoft Security Blog & MSRC · microsoft.com · Oct 21, 2026 · Primary source