If a link you shared from Muse no longer opens, do not assume your account is broken. On October 20, 2026, Meta paused the sharing feature after receiving a report from security researchers, and when sharing resumed on October 22, content shared earlier was given new addresses — opening an old link prompts you to ask the sharer for a new one. According to Meta's statement at the time, the problem was that shared links could be discovered through passive DNS records, not that accounts had been hacked. An old link failing is not itself a fault; what really needs attention is whether content those links pointed to was seen by people who should not have seen it.
Do three clean-up steps first. First, list everywhere you posted a link: check email, group chats, documents, and tickets for shared links, and delete old links or replace them with new ones; anything that no longer needs sharing should not be re-shared. Second, deal with the content itself. Treat anything you shared as if it has already been seen: if it contained a password, account details, client information, or an address, change the password and tell the people involved first — deleting a link cannot take back content that has already been seen. Third, clean up at the source. Delete that conversation, then ask Muse to forget what it learned from it, and check the memory settings as well, because deleting a conversation alone does not delete memory.
The title of a shared link deserves attention too. In the researchers' findings, share page addresses contained conversation titles, so a title alone could give away the subject, and old hostnames may remain in passive DNS records — deleting a link does not erase that history. Before sharing, glance at the title to see whether it contains sensitive information, and think about how the title itself is worded; that matters just as much. From now on, share only the part that is needed: copy the text and send it to the other person, instead of sending a whole conversation together with the original material you pasted into it. For sensitive material involving money, identity, or work, start a new conversation with the sensitive details removed and ask again, rather than sharing the original conversation for convenience.
