Are there any studies for or against frequent password changes?

Asked 2009-04-20T07:57:50.880

I'm looking for studies on the security effect of frequent password changes, looking at the security benefits / problems from having a mandatory password change every one or two months or similar.

Does anyone know of any?

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In my opinion, forcing people to change their password too often, reduces security because the only way people can remember so many passwords, is to start using stupid passwords like Computer123 or January1 followed by February1 etc...

A better idea is to reduce the frequency and then train people how to create strong passwords.

answered 2009-04-20T08:12:19.177

Are there any studies for or against frequent password changes?

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