Let’s kill the kill switch.

This CyberWire Daily briefing compiles current security news: debate over an AI kill switch, a critical Ruby on Rails vulnerability under active exploitation, malicious Chrome extensions stealing cryptocurrency and browser data, China-linked Fire Ant compromising trusted infrastructure, a prompt-injection-like issue with Claude Code, MyChart-themed phishing spreading malware, arrests in sextortion cases, and an insider leaking secrets; the episode includes guest Tim Starks from CyberScoop and links to deeper reporting.