Password Reuse Risks

This cluster discusses the common practice of reusing passwords across services, its associated security risks like credential stuffing, and solutions such as password managers or unique passwords per site.

📉 Falling 0.3x Security
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#7562
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Keywords

HN OK NOT SF xkcd.com ServiceName passwords password reuse use password reusing services chars sf users insecure

Sample Comments

anoncake Nov 26, 2018 View on HN

Unless the user uses the same password for other things, which is extremely common.

lone_haxx0r May 24, 2019 View on HN

People like him are why we can't reuse passwords

gabriel34 Dec 10, 2013 View on HN

Even better, you can be certain a great number of users reuse their password

danjaouen Nov 6, 2012 View on HN

Seems like this would result in many users using the same password for particular services.

charcircuit Aug 7, 2025 View on HN

With password managers passwords are not reused which avoids this problem already.

barrkel Jun 6, 2011 View on HN

Passwords are frequently reused.

icebraining Apr 4, 2013 View on HN

Well, that assumes people aren't reusing those passwords.

hackmiester Apr 18, 2020 View on HN

Good thing no one on HN would ever reuse a password, right?

greenthrow Sep 1, 2024 View on HN

If you're sharing lots of passwords you are really messing things up. Rethink your approach.

tejasmanohar Apr 7, 2018 View on HN

People reuse passwords. The mere possibility of someone being able to see it is bad.