Looks like a system-wide outage, including helpdesk: https://slack.com/help/articles/205138367-Troubleshoot-conne...

Status page is not updated: https://status.slack.com

Might be related: https://fortune.com/2023/10/05/slack-employees-one-week-off-...

Will be interesting to see how long it takes them to update the status page. I will use this comment as a timestamp.

It was updated just now with a message saying "Users are having trouble connecting to Slack". So about 15 minutes since the comment above. However, I think the first reports started a bit earlier, so maybe 30 minutes is a better estimate.

https://slack.com/ is down too. Someone is having a terrible day...