#service-disruption

#service-disruption

On July 29, 2025, enterprises relying on Microsoft Azure's East US region experienced an unexpected disruption that reverberated across numerous organizations. The root cause wasn't a network breach, misconfiguration, or other complex technical mishap. It was something shockingly basic: a lack of capacity.

The MBTA has announced a partial shutdown of the Red Line from Thursday night through Sunday, affecting service between Kendall/MIT and JFK/UMass stations.

AT&T's service outage struck at approximately 1:30pm ET, affecting mobile and landline internet services for thousands of users across major US cities.

Starting June 23, several train services will undergo diversions and cancellations due to essential engineering works, necessitating alternative transport arrangements for passengers.

The Microsoft outage that disrupted Teams, Exchange Online, and related services was ultimately caused by an overly aggressive traffic management update that unintentionally rerouted and choked legitimate service traffic.

At around 11:30 a.m. PT, Downdetector showed over 13,000 reported incidents for Google Cloud. A wide array of cloud services are down.

MTA spokesman Tim Minton said later: "While the investigation into cause is in its early stages, this appears to be an equipment issue limited to a small area inside the station complex that caused limited service disruption."