Claude authentication issue resolved

1. 21:10
   ITHome · AI

   Anthropic issues Claude outage notice: Microsoft service disruption affects some services

   Anthropic released a Claude outage notice stating that the Microsoft 365 service disruption caused some Claude service failures, including unusually high error rates and authentication issues on claude.ai, Claude Code, and platform.claude.com. Anthropic is investigating the problems with upstream service providers, and Claude for Outlook is also affected, unable to perform email and calendar operations.

2. 19:52
   36Kr · AI

   Anthropic Has Deployed a Solution to Address Claude Authentication Issues

   Anthropic has deployed a fix to address the authentication issues users encountered when logging into claude.ai and Claude Code, and is currently monitoring the system recovery.

3. 18:31
   ITHome · AI

   Claude experiences a large number of errors, Anthropic officially announces an investigation

   A large number of errors have appeared on Claude.ai, Claude Code, and platform.claude.com. Anthropic has officially announced that they are investigating the issues users are encountering during authentication, and this incident has affected multiple Claude products.

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