Microsoft's Sovereign Cloud Now Operates Entirely Offline, Supports Major AI Models

For governments and industries where data cannot cross a border, the cloud has often been out of reach. Microsoft is changing that with a significant expansion of its Sovereign Cloud portfolio, enabling full operations—from productivity software to large AI models—without any connection to the public internet.

The updates, available now, address a core challenge for sectors like national security, regulated finance, and critical infrastructure: maintaining modern capabilities under strict isolation. The enhancements focus on three areas.

First, Azure Local now supports completely disconnected operations. Organizations can run critical infrastructure using Azure's governance tools, but with all management and execution contained within their own facilities.

Second, Microsoft 365 Local brings core productivity servers—Exchange, SharePoint, and Skype for Business—into that same isolated environment. These servers are supported through at least 2035, ensuring long-term viability for offline teams.

Perhaps the most notable advance is the addition of large AI model support to Foundry Local. Using hardware from partners like NVIDIA, customers can now run advanced multimodal AI for local inferencing within their secure boundaries. This moves powerful AI capabilities directly into private data centers that have no external links.

Gerard Hoffmann, CEO of Proximus Luxembourg, highlighted the strategic importance: "For Luxembourg, where digital sovereignty is a strategic necessity, this model offers the resilience and autonomy our market expects."

Douglas Phillips, who leads Microsoft's specialized cloud engineering, oversees these offerings. The company states the solutions are designed for unified governance, whether environments are connected, hybrid, or fully air-gapped, providing control without forcing architectural fragmentation.

Source: Microsoft