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2/3/2020
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Bad Certificate Knocks Teams Offline

Microsoft allowed a certificate to expire, knocking the Office 365 version of Teams offline for almost an entire day.

Microsoft Teams on Office 365, a service that passed the 20 million user mark late last year, was knocked down this morning by a certificate issue. Specifically, an authentication certificate was allowed to expire, keeping millions from logging in to the service.

Microsoft acknowledged the service interruption at approximately 9:15 a.m., ET and by roughly 10:30 a.m. ET it had acknowledged that the problem was certificate based. An hour later, the company tweeted that it had begun the remediation process, with a message at nearly 5:00 p.m. ET that the fix had been applied.

For more, read here.

Check out The Edge, Dark Reading's new section for features, threat data, and in-depth perspectives. Today's top story: "AppSec Concerns Drove 61% of Businesses to Change Applications."

Dark Reading's Quick Hits delivers a brief synopsis and summary of the significance of breaking news events. For more information from the original source of the news item, please follow the link provided in this article. View Full Bio
 

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