FAA Issues Nationwide Ground Stop Citing Communication Failures Across All Air Route Traffic Control Centers

Microsoft 365 Outage Disrupts Outlook, Teams and Copilot Worldwide for Hours

A major Microsoft 365 outage began affecting users from Asia to the United States, impacting Outlook, Teams, Exchange Online and the AI assistant Copilot. The disruption hit commercial customers, government operations and businesses including airlines, banks and hospitals, with Microsoft confirming more than 450 million paid subscriptions were potentially exposed. Engineers applied multiple recovery actions in phases while stating there was no indication of malicious activity and comparing the event to the 2024 CrowdStrike incident caused by a faulty update. Early stabilization was reported but service health remained variable with capacity not yet returned to baseline. British police forces, the National Health Service, Hong Kong banks, Air India, IndiGo, Singapore government and Japan’s IT infrastructure all experienced interruptions, forcing reliance on alternative communication methods. OpenAI and Anthropic also faced connectivity problems with Microsoft 365 tools, highlighting broader ripple effects across AI platforms.

Massive Microsoft 365 Outage Disrupts Outlook, Teams, Copilot and Exchange Online Worldwide

Microsoft is investigating a widespread outage affecting multiple Microsoft 365 services including Outlook, Microsoft Teams, and Copilot. The incident began at 1:26 PM ET on Thursday and impacted Exchange Online, SharePoint Online, Microsoft Defender XDR, Azure, and OneDrive. Microsoft initially attributed the disruption to elevated infrastructure load but later confirmed that a number of servers unexpectedly became unavailable. The company paused all deployments, redistributed connection traffic, and began restarting affected servers to restore capacity. The outage follows a separate Microsoft Teams incident earlier the same day that affected users in North and South America from 9:45 AM to 10:53 AM ET.

Webinar: Closing Identity Blind Spots to Strengthen SOC Threat Detection and Response

Security teams face growing challenges as the volume of alerts, logs, and monitoring tools increases, yet identifying the owner of suspicious activity and its potential access remains difficult. The gap between identity and access management teams and security operations often leaves analysts without critical context on permissions, connected systems, and blast radius when incidents occur. This webinar highlights how real-time identity intelligence can be integrated with SIEM and EDR platforms to accelerate investigations involving human users, service accounts, machine identities, and autonomous AI agents. Experts will discuss practical methods for understanding lateral movement risks, safely containing compromised credentials, and aligning IAM and SOC workflows without disrupting business processes. The session draws on enterprise deployment examples to show how shared metrics, escalation paths, and response playbooks improve overall incident handling. Attendees will learn to enrich alerts with identity context to distinguish manageable events from high-impact threats.