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."
About the Author(s)
You May Also Like
The fuel in the new AI race: Data
April 23, 2024Securing Code in the Age of AI
April 24, 2024Beyond Spam Filters and Firewalls: Preventing Business Email Compromises in the Modern Enterprise
April 30, 2024Key Findings from the State of AppSec Report 2024
May 7, 2024Is AI Identifying Threats to Your Network?
May 14, 2024
Black Hat USA - August 3-8 - Learn More
August 3, 2024Cybersecurity's Hottest New Technologies: What You Need To Know
March 21, 2024