John Voorhees, MacStories:

iCloud links to shortcuts broke sometime in the past 24 hours. Instead of opening the Shortcuts app and allowing users to install a shared shortcut, tapping a shortcut link displays an alert with the message ‘Shortcut Not Found,’ explaining that the link may be invalid or the shortcut may have been deleted.

These links broke for everyone. For example:

3 years of Shortcuts https://t.co/1rxiu3BRbk URLs are broken on @macstoriesnet right now.

Beyond the 229 shortcuts in the Archive, dozens of blog posts from our Shortcuts coverage have broken links.

Like I said, I hope this is a bug and a fix is coming. pic.twitter.com/1twX70F93Z

— Federico Viticci (@viticci) March 24, 2021

Years and years of Shortcuts cut off from the community. A single point of failure, showcased.

Apple has acknowledged the issue and is on it:

We are aware of an issue where previously shared shortcuts are currently unavailable. Newly shared shortcuts are available, and we are working to restore previously shared shortcuts as quickly as possible.

The dark side of the cloud.