Monitor email accounts and get alerted if they appear in known data breaches.
How it works:
By default this uses Have I Been Pwned (HIBP). HIBP requires an API key and does not allow direct browser requests in many setups — use a small server-side proxy to keep your API key private.
If no API/proxy is configured, the tool offers a demo fallback for testing (no real breach checks).
Keep privacy in mind — sending emails to third-party services reveals what you check. Prefer your own proxy for production.