Slack Faces Major Outage, Thousands of Users Report Disruption

Slack Faces Major Outage Thousands of Users Report Disruption

Slack Faces Major Outage, Thousands of Users Report Disruption

It was a rough start to the week for many professionals relying on Slack, as the popular messaging platform faced a widespread outage on Monday, November 10, 2025. The issue left thousands of users frustrated and disconnected from their workspaces, with many unable to send or receive messages for several hours.

According to outage tracker Downdetector, reports of problems started flooding in around mid-morning Pacific Time. By 10:30 a.m., over 15,000 users had reported errors ranging from connection failures to complete message delays. The outage appeared to hit major U.S. cities the hardest — including San Francisco, Seattle, Chicago, Boston, Washington, D.C., and New York City — where Slack is heavily used by corporate teams and tech companies.

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For many workers, the timing couldn’t have been worse. As one user joked on X (formerly Twitter), “Slack outage?? In the middle of a super busy Monday, of course.” Others expressed confusion as Slack’s own status page continued to show “all systems operational,” even while users were clearly experiencing disruptions. One post read, “Slack status page says green — clearly it’s not,” while another added humor to the mix: “Slack died for like one minute, and for that one minute, I felt truly free.”

As the outage unfolded, Slack’s technical team began investigating what they called a “new incident.” Later updates indicated that engineers had identified the issue and were working on a fix. Around 2:30 p.m. Eastern Time, reports of user problems began to drop sharply, suggesting that service was gradually being restored. Slack confirmed that their health metrics were showing signs of improvement but noted that “work on this issue is still ongoing.”

While no official explanation has yet been provided for what caused the disruption, the incident highlights how deeply integrated tools like Slack have become in the modern workplace. A few minutes of downtime can bring entire teams to a halt — and on a Monday, no less.

This isn’t the first time Slack has experienced a widespread outage, and it likely won’t be the last. Still, the speed at which reports surged across Downdetector — and the collective sighs of relief as systems came back online — show just how central the platform has become to daily operations. For now, Slack appears to be stabilizing, but users everywhere will be keeping an eye on its status page just in case the glitch makes a return.

In the ever-connected digital workspace, even a brief silence on Slack can feel like a major disruption — and today was one of those days.

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