Cybersecurity equities faced downward pressure Friday following reports that AI startup Anthropic inadvertently exposed internal data. The lapse allegedly revealed details of an unreleased model, “Claude Mythos,” and an invite-only CEO retreat.
Significant Security Lapse at Anthropic
Anthropic reportedly left nearly 3,000 assets accessible via its content management system (CMS). According to Fortune, cybersecurity researcher Alexandre Pauwels discovered the unsecured data cache. The files included draft blog posts, images, and research papers.
The company secured the data on Thursday after being notified of the issue. Anthropic attributed the incident to “human error in the CMS configuration.” A spokesperson told Fortune the issue was “unrelated to Claude, Cowork, or any Anthropic AI tools.”
Leaked Details of “Claude Mythos”
The exposed documents reportedly contain information on a new AI model. Anthropic described this model in internal drafts as a “step change” in capabilities. The company confirmed it is testing a model …
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