Claude Code was mailing your email address to every website it visited: the User-Agent leak, the 5-month system-prompt issue, and the 5-point check

Claude Code put your account email in the User-Agent header of its web requests, so every server log on the agent's path harvested a scam-ready lead, and the same email ships in the system prompt of every session, an issue open since July. Fixed by a built-in mod in 2.1.317 after the issue went viral. The mechanics, the timeline, and the runtime test for your install.