Today’s disruption is centered on Outlook and Exchange, with Microsoft also identifying potential connectivity problems across Teams, SharePoint, Copilot and Defender XDR.

Microsoft says large numbers of servers unexpectedly became unavailable, pushing their workload onto the remaining infrastructure. Engineers are shifting traffic and restarting servers. The company has also paused deployments and configuration changes while investigating what triggered the failures. (mailservices.isc.upenn.edu)

My takeaway: putting email, meetings, documents, AI and security under one roof concentrates the consequences when that infrastructure fails.

Businesses should be asking a practical question: Can we keep operating when the platform we depend on cannot?