Get the latest market trends in your inbox

Stay on top of the latest market trends and economic insights with the Axios Markets newsletter. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Denver news in your inbox

Catch up on the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Des Moines news in your inbox

Catch up on the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Minneapolis-St. Paul news in your inbox

Catch up on the most important stories affecting your hometown with Axios Minneapolis-St. Paul

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tampa-St. Petersburg news in your inbox

Catch up on the most important stories affecting your hometown with Axios Tampa-St. Petersburg

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Slack users had trouble accessing the business messaging service on Wednesday, an issue that the company said was due to a denial-of-service attack on one of its key partners, known as a content delivery network (CDN).

However, Slack says it has been able to work around the issue and service is back to normal.

Why this happens: Most of the services on the Internet (except Amazon, Microsoft, Google and a few others) rely on partners to actually reach their customers. That means companies like Slack are vulnerable not just to issues with their own systems, but also at their key partners. The upside is companies need far fewer servers than if they had to host and serve everything themselves.

Go deeper

46 mins ago - Health

Beware a Thanksgiving mirage

Illustration: Sarah Grillo/Axios

Don't be surprised if COVID metrics plunge over the next few days, only to spike next week.

Why it matters: The COVID Tracking Project warns of a "double-weekend pattern" on Thanksgiving — where the usual weekend backlog of data is tacked on to a holiday.

Trump pardons Michael Flynn

President Trump with Michael Flynn in 2016. Photo: David Hume Kennerly/Getty Images

President Trump on Wednesday pardoned his former national security adviser Michael Flynn, who pleaded guilty in the Mueller investigation to lying to FBI agents about his conversations with a former Russian ambassador.

Why it matters: It is the first of multiple pardons expected in the coming weeks, as Axios scooped Tuesday night.

Get Axios AM in your inbox

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!