National Cybersecurity Center
Advisory Alert

Anthropic Confirms Claude is Down in a Worldwide Outage

Anthropic has confirmed a global outage of its Claude AI service, causing widespread errors and failures across platforms. Many users may be unable to access Claude or receive frequent error messages.


Who Is at Risk

People and organizations that rely on Claude for writing, customer support, development, or other workflows are most affected.

What to Watch For

Failed responses, repeated error messages, inability to log in or access the service, and interrupted automated workflows.

What to Do

Immediately pause critical tasks that depend on Claude, save any unsaved work, notify your team or clients, and switch to backup tools or manual processes.

Stay Protected

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