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Safe passwords (programming.dev)

submitted 5 days ago by [email protected] to c/[email protected]

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Funny thing at work, I was handling some legacy users - we need to make sure that on the next login, if they have a weak password, they have to change it.

So the whole day I'm typing "123" as a password, 123 123 123 123 all good. So finally I'm done and now I'm testing it, and accidentally I type 1234 instead of just 123. Doesn't really matter, either is "weak", so I just click "Login".

Then goes Chrome, "1234 is known as a weak password, found in breaches, you should change it".

So TIL 123 is still good.

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[–] [email protected] 2 points 5 days ago (1 children)

You can have a list of hashes for known weak passwords, and compare it to hashes of the actual passwords stored.

Or at least that's how I think it'd work

[–] [email protected] 4 points 4 days ago

If the passwords were properly salted, it wouldn't. But if they're not salted, helloooooo rainbow tables. Or the world's greatest crossword puzzle, like that one Adobe accidentally made. Maybe even both!