---
title: "Discussion on \"How HaveIBeenPwned Checks Your Password Without Ever Seeing It\" | Hashnode"
description: "Discussion on \"How HaveIBeenPwned Checks Your Password Without Ever Seeing It\". HaveIBeenPwned can check your password against billions of breached credentials without ever seeing it. Here's how k-anonymity makes that possible."
url: "https://hashnode.com/posts/how-haveibeenpwned-checks-your-password-without-ever-seeing-it/69e23a14fd22b8ad622af8b4"
---

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Discussion

# [How HaveIBeenPwned Checks Your Password Without Ever Seeing It](https://eande171.hashnode.dev/how-haveibeenpwned-checks-your-password-without-ever-seeing-it?utm_source=hashnode&utm_medium=feed)

HaveIBeenPwned can check your password against billions of breached credentials without ever seeing it. Here's how k-anonymity makes that possible.

Apr 17 · 5 min read · eande171.hashnode.dev  
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-   [#security](https://hashnode.com/tag/security)
-   [#web-development](https://hashnode.com/tag/web-development)
-   [#beginners](https://hashnode.com/tag/beginners)
-   [#passwords](https://hashnode.com/tag/passwords)
-   [#privacy](https://hashnode.com/tag/privacy)

## Written by

[Eden](https://hashnode.com/@eande171)

@eande171 · Australia

  
[View profile](https://hashnode.com/@eande171)

Solo dev from Australia making cool projects and (hopefully) making things people benefit from.

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