Progress orders emergency ShareFile server shutdown over mystery security threat

Progress Software has ordered some ShareFile customers to pull the plug on their own servers after detecting what it describes as a "credible external security threat" targeting the on-premises component of its enterprise file-sharing platform. The emergency warning, sent by email and seen by The Register, instructed organizations running ShareFile Storage Zone Controllers to take the unusual step of manually shutting down the Windows servers that host the software, with no patch or configuratio