Microsoft 365 services are coming back after major outage

Microsoft 365 was hit with a significant outage late Monday that affected users' access to multiple services, including Outlook.![|1x1](upload://6w7HOLoKuTDtEXRteNiYA53kW94.gif)
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Is Microsoft running corporate email/office in this office 365? Before I left they were doing a lot of talk about Microsoft licensing for office and I swear that I heard them indicate it would be online.

O365 is huge. The outage was in azure I believe.

I noticed several apps needed to be re-authenticated which means azure ad screwed up.

AD is a directory service. Many companies rent it to setup authentication.

I had to login to my thermostats. It lost the AD token.