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Messaging app Slack is back online after suffering a worldwide service outage

  • Slack, a popular messaging service, suffered a massive outage late Tuesday evening
  • At about 9:35 p.m. ET (6:35 p.m. PDT), the company said that services were back online
  • Slack has about 9 million weekly active users
Chris Ratcliffe | Bloomberg | Getty Images

Popular workplace messaging service Slack suffered a massive outage late Tuesday evening, leaving users around the world unable to send or receive messages and files.

The service failed around 7 p.m. ET and partially resumed by 9:13 p.m. ET. At that time, the company said some users were able to successfully connect to the messaging app, but cautioned the issue is not yet fully fixed.

At about 9:35 p.m. ET, the company updated its status page, saying all users should be able to use the messaging app again.

The company also apologized for the disruption and thanked users for their patience.

Slack has about 9 million weekly active users and is a popular mode of communication among many Silicon Valley firms, Fortune 100 companies and media organizations. On its website, Slack says it has more than 50,000 paying companies that use the service.

The messaging app raised $250 million in a funding round led by Japanese tech giant SoftBank in September. That put the company's overall valuation at $5.1 billion.

Users took to social media to complain about the service disruption. In true internet fashion, the memes and the jokes soon followed: