Meta says it has re-enabled Muse sharing after fixing the security issue that prompted its suspension. Researchers had pointed out that shared-page addresses reflected titles and appeared in public DNS records, making sensitive work materials easier to find. The company said the fix concerns URLs for artifacts such as documents and images, rather than a flaw in ordinary chat sharing. Items shared before the fix receive new URLs, while visitors to old addresses see instructions to ask the author for a new link. This is a follow-up about restoring the feature and replacing links, rather than another report of the original exposure.