Storm clouds over the waterworks.

This CyberWire Daily episode and briefing collects recent cybersecurity developments: CISA’s Cyber Storm X exercise, EU struggles with threat information sharing, an active TASK#STOMP Windows backdoor used for continuous document theft, a Windows Defender zero-day blocking AV updates, North Korean laptop farm operations and social-engineering campaigns, a $700K HIPAA fine after a phishing breach at Ambry Genetics, and a zero-day in Meta’s Muse AI that could allow local privilege hijacking—alongside expert commentary on social engineering and vishing.