Password leak check
Check whether a password appears in known data breaches. It is hashed in your browser; only the first five characters of the hash are sent (k-anonymity).
How the check keeps your password private
Your browser computes the SHA-1 hash of the password and sends only its first five characters to the Pwned Passwords range API. The API answers with every known hash that starts with those characters; the comparison happens on your device. Neither coldbraid nor the API ever sees the password or its full hash.
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