Meta reportedly rushed Muse security fixes before launch

Joseph Cox cited a 404 Media report saying Meta scrambled to fix serious Muse vulnerabilities in the immediate lead-up to launch, including "a VM escape that could have let a hacker break out of Muse and into Meta's own sensitive databases." Cox also wrote that the issue "was escalated to Zuckerberg" (Cox's post).

A separate summary post described the same reported issue by saying, "404 Media reports Meta rushed to fix Muse VM escapes before launch; one could have exposed internal databases" (). Because the inspected record here is limited to social posts summarizing 404 Media, the clearest supported framing is a reported VM escape vulnerability before launch, not independently confirmed details beyond that.