Anthropic's Claude Shared Conversations Exposed on Google... Cryptocurrency Wallet Seed Phrases Also Revealed

Hundreds of shared conversations from Anthropic's generative AI service Claude were exposed in Google search results, revealing sensitive information including cryptocurrency wallet seed phrases, personal data, and legal consultation details. A blockchain media outlet reported that Claude's shared links lacked noindex meta tags, allowing search engines to index public links. A Reddit user discovered thousands of shared conversations via 'site:claude.ai/share' searches, despite warnings that links were publicly accessible. Exposed content included cryptocurrency wallet seeds, social security numbers, and legal inquiries. Anthropic's robots.txt file restricted crawling but failed to fully block search engine indexing. Google clarified that links would still appear in search results even if pages weren't indexed. Similar issues affected public artifacts, with searches revealing salary spreadsheets, CRM conversations, and product roadmaps. This parallels OpenAI's 2023 incident where ChatGPT conversations were exposed through search features.