Security firm Claroc identified more than 6,800 exposed Muse share links by conducting a single passive DNS query against a commercial database for domain cf.metaaiusercontent.com.

From the articleMeta Muse exposes users' personal and business secrets when they share conversationsAlso in Meta pauses Muse sharing after researchers find AI chats on the web, Meta Suspends Muse Chat Sharing After Researchers Find Links in Public DNS, Meta suspends Muse chats sharing feature after it left private details exposed - Engadget