Some publicly shared Claude apps, documents, spreadsheets, and other artifacts are appearing in Google search results. Although Claude content is private by default, anyone who creates a public sharing link makes that content publicly accessible. If the link is then posted somewhere visible to search engines, it may be indexed or archived.
This creates a privacy risk because users may think they are sharing only with specific people when they are actually publishing potentially sensitive material. Examples found in search results included business plans, infrastructure diagrams, academic documents, civic proposals, and clinical-trial planning materials.
Anthropic says it does not provide chat directories or sitemaps to search engines, and that shared links are not inherently discoverable. The central lesson is that public sharing links should be treated as published content, not private handoffs.