A missing search-engine tag let some publicly shared Claude AI chats appear in Google, Bing, and Brave search results.
A link meant for one person became a public, searchable page — not because anyone made a mistake, but because the sharing feature itself was missing a basic search-engine opt-out. For a law firm, accounting practice, or advisory business bound by client confidentiality, that's an exposure with no bad actor required.
Source: The Decoder ↗