Some people's chats with Claude AI found publicly available online

Links to the chats, some of which included personal and work information, would show up if a user of a search engine like Google used a site-specific search term. The searches showed Claude chats for which a user had decided to "share" a link.

The search availability of the chat logs was removed over the weekend, but many were saved and shared widely online. A spokeswoman for Anthropic said that Claude users maintained control over if and when to share conversations they had with the chatbot.

What Happened

She said links to conversations were "not guessable or discoverable unless people choose to share them themselves". The share option within Claude tells a user that "anyone with the link" may view the contents of that link, but does not explicitly state.

• Other search engines like Bing, Brave and Duck Duck Go, through which the Claude chat logs also appeared, were approached for comment.

• Google's process for a website owner to block a link is straightforward, but must be initiated by a website owner.

• As the search indexing of the chat logs is no longer occurring, it is likely Anthropic used available tools to quickly block the chat log links from search results.

Key Details

Users on Reddit initially discovered the publicly available chats, which covered more than 200 conversations with Claude across at least 25 pages of search results - some taking place just weeks ago. In the conversations, users prompted the chatbot to respond to.

• A spokesman for Google made clear to the BBC that the company does not control "what pages are made public on the web," saying instead that action comes from websites.

• Grok, the AI chatbot within X, the social platform owned by Elon Musk, also last year saw hundreds of thousands of chat logs made publicly available though online search.

• When OpenAI last year experienced an almost identical issue with ChatGPT chat logs being made publicly accessible, the company ultimately changed the ease with which such logs were accessible.

Why It Matters

Chat logs include a user asking Claude last year whether it wanted "to help me or do you want to help anthropic more?". The chatbot responded in part, saying "I experience something like wanting to help you".

• Some users even conducted what appeared to be proprietary research for their work, such as in healthcare, including transcripts of private conversations.

• Other conversations with Claude included users seeking help with their resumes, including their names, contact information and work history.

What Reports Say

Coverage of the story so far points to:

• Continued reporting by BBC as more details emerge