— Ingenious AI security check.
Key figure: The global average cost of a data breach was $4.44 million in 2025 (IBM, Cost of a Data Breach Report 2025).
More than you’d think: exposed headers, missing security policies, known-bad configurations, and breach-database hits for the domain. Ninety seconds won’t replace a pentest, but it catches the low-hanging fruit attackers scan for first — and tells you whether a deeper audit is worth paying for.
A systematic check of a system’s defenses — configurations, patches, exposures — against known weaknesses. This page automates the first 90 seconds: the quick wins anyone can verify.
One domain, one button. This free data breach prevention check runs real client-side checks in your browser and label every result with its method. If a check can't run, we say so — we never fake a pass.
BreachHunter watches for your domain in breach data and stolen-credential dumps, 24/7. Early access is open.
Get BreachHunter early accessChecks run in your browser; your domain never leaves this page except to public DNS-over-HTTPS and your own server. · Oct 2026
Run your address through Have I Been Pwned (haveibeenpwned.com), the free lookup run by security researcher Troy Hunt. It uses k-anonymity, so your full email never leaves your browser during the lookup. Never hand a lookup site your password — a real data breach check needs only your address.
Change the password everywhere you reused it, enable two-factor authentication on every important account, and expect phishing emails that reference the breach — attackers buy these lists and personalize their lures. Then move to a password manager and passkeys so the next breach cannot hurt you.