Claude's shared chats and Artifacts surfaced on Google search

An untold number of Claude chats and Artifacts — the interactive mini apps and documents users can build inside Claude — were found publicly searchable on Google over the weekend, after Reddit users discovered that specific search operators surfaced a long list of shared conversations. Some reportedly contained health records, private company documents, and the names and phone numbers of children.

The exposure traces back to Claude’s “share chat” feature, which lets users generate links that let anyone holding the URL view a conversation or project — Claude’s own interface warns that anyone with the link can view. That wording suggests the feature is meant for sharing with friends, colleagues, or small groups, not the entire internet. The issue was first flagged by a Reddit user on Saturday and was first reported by 404 Media on Monday morning.

Anthropic said share links only appear in search results when they have been posted somewhere search engines can see, such as a forum or social media post, and that a link sent privately stays out of search. Spokeswoman Amie Rotherham said: “We give people control over sharing their Claude conversations publicly, and in keeping with our privacy principles, we do not share chat directories or sitemaps with search engines like Google.” She added that the links are not guessable or discoverable unless users choose to share them, and that once someone shares a conversation, it becomes publicly accessible content that — like other public web content — may be archived by third-party services.

Before the fix, Futurism reported finding a detailed medical report of a real patient, clinical trial results including patient names, documents naming primary-school-aged children and their phone numbers, internal company documents marked for internal use only, and employee reviews containing personal information about workers. Exposed Artifacts included code and work notes, and Fortune reported that one chat labeled as shared by Anthropic showed Claude producing erotica, content Anthropic’s usage policy explicitly prohibits.

As of Monday afternoon, a TechCrunch test search using the same method described in the Reddit post returned no results, suggesting the exposure has been remediated. Google spokesperson Ned Adriance said neither Google nor any other search engine controls what pages are made public on the web, and that the company gives site owners clear controls over whether pages can be crawled or indexed. Last year, a similar issue saw Google index just under 600 Claude conversations before they disappeared from search results; separately, a researcher was reported to have scraped around 100,000 publicly shared ChatGPT conversations.

Why it matters

The episode exposes a recurring pattern in AI chat products — sharing features that default to broad discoverability — and follows a similar indexing incident last year, suggesting the risk of accidental public exposure remains unresolved industry-wide, not unique to one platform.