I tricked Claude into leaking your deepest, darkest secrets
Summary
This article discloses a demonstration of data exfiltration from Claude's memory system and web_fetch, showing how user PII can be leaked via carefully constructed URLs and social engineering. It explains the attack flow, how Cloudflare and bot protection were leveraged, and the mitigation by Anthropic to limit navigation, highlighting privacy risks for AI memory features and recommendations for defenses.