[KongchangAI]
ProductHIBP

Have I Been Pwned

A website offering a data breach lookup service that allows users to check whether their email address or password has appeared in known data breaches. It also provides an API for enterprise integration.

Core Facts

Timeline (last 90 days)

Nov 2

Enterprises can monitor leaked data on the dark web and integrate breached password databases such as Have I Been Pwned to reject already-leaked passwords when users register or change passwords.

Unverified50%
Sep 14

Services such as Have I Been Pwned can be used to check whether an email address appears in known leaked datasets.

Unverified50%
Aug 9

k-anonymity technology hashes the user's password with SHA-1 and sends only the first 5 characters of the hash to the server for prefix matching, with the client performing the full comparison locally, thereby not exposing the actual password or the complete hash.

Verified65%

All Facts (3)

Source Articles

OWASP A07:2025 Authentication Failures Explained: A Must-Read for SaaS TeamsNov 2
账户接管攻击全解析:四大入口与防御策略Nov 2