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Password
exposure
checker.

We use HIBP k-anonymity — only the first 5 characters of the SHA-1 hash ever leave your browser. Your password is never transmitted or stored.

SHA-1 → 5-char prefix range query
zero server-side password persistence
zero third-party analytics on this endpoint
breachlens

Continuous exposure intelligence across breached databases, paste sites and aggregated public leak corpora.

Sources
XposedOrNot Breach Catalog
HIBP Pwned Passwords (k-anonymity)
Internal Aggregated Corpus
Notice

Passwords are checked using k-anonymity — the first 5 hash characters are transmitted; the full password never leaves your browser.

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