Bad Certificate Knocks Teams OfflineBad Certificate Knocks Teams Offline
Microsoft allowed a certificate to expire, knocking the Office 365 version of Teams offline for almost an entire day.
February 4, 2020
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."
About the Author(s)
You May Also Like
Hacking Your Digital Identity: How Cybercriminals Can and Will Get Around Your Authentication MethodsOct 26, 2023
Modern Supply Chain Security: Integrated, Interconnected, and Context-DrivenNov 06, 2023
How to Combat the Latest Cloud Security ThreatsNov 06, 2023
Reducing Cyber Risk in Enterprise Email Systems: It's Not Just Spam and PhishingNov 01, 2023
SecOps & DevSecOps in the CloudNov 06, 2023
9 Traits You Need to Succeed as a Cybersecurity Leader
The Ultimate Guide to the CISSP
AI in Cybersecurity: Using artificial intelligence to mitigate emerging security risks
Protecting Critical Infrastructure: The 2021 Energy, Utilities, and Industrials Cyber Threat Landscape Report
Business Buyers Guide to Password Managers